Multi-station metal product drilling tool

Abstract

The utility model discloses a kind of multi-station metal product drilling tool, including annular workbench, central mechanical arm, pneumatic fixture, cooling unit, cleaning unit, support unit, drive unit and console.Ring-shaped workbench is equipped with feeding, drilling, cleaning, discharging station, central mechanical arm is located in center, free end with drill bit and camera;Pneumatic fixture is fixed workpiece with inverted L type clamping plate, cooling unit is precisely cooled by spray head, cleaning unit is cleaned workpiece by clean water and high pressure gas;Drive unit drives workbench rotation to realize station circulation, and console controls each component.The tool realizes "feeding-drilling-cleaning-discharging" full-automatic closed-loop production, improves operation efficiency, guarantees processing precision and surface quality, reduces labor cost and waste rate of defective products.

Description

Technical Field

[0001] This utility model belongs to the field of metal product processing technology, specifically relating to a multi-station metal product drilling fixture. Background Technology

[0002] In the field of metal processing, drilling is a common process. Traditional tooling is mostly designed for single-station operation, allowing only one part to be drilled at a time. After machining, the machine must be stopped to remove the part and clamp the new part, resulting in long waiting times and making continuous production impossible, especially in batch processing where efficiency is extremely low. Although some multi-station tooling has multiple machining positions, switching between positions relies on manual rotation or manual pushing, which is not only labor-intensive but also prone to reduced drilling accuracy due to positioning errors. Furthermore, each station has a single function, with drilling, cooling, and cleaning processes all needing to be completed in the same location, leading to overlapping processes and extended processing cycles. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-station metal product drilling fixture to solve the problems in the prior art where single-station operation cannot achieve continuous production and station switching requires manual pushing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a multi-station metal product drilling fixture, including a ring-shaped worktable, a central robotic arm, a pneumatic clamp, a cooling unit, a cleaning unit, a support unit, and a drive unit. The ring-shaped worktable has at least two workstations. The central robotic arm is located at the center of the ring-shaped worktable. The pneumatic clamp is located at the workstation. The cooling unit and the cleaning unit are installed on the outside of the ring-shaped worktable. The support unit and the drive unit are installed at the bottom of the ring-shaped worktable.

[0005] In a further technical solution, the workstation includes a loading workstation, a drilling workstation, a cleaning workstation, and a unloading workstation.

[0006] In a further technical solution, the free end of the central robotic arm is equipped with a drill bit and a camera.

[0007] In a further technical solution, the pneumatic clamp includes several clamping plates, each clamping plate being inverted L-shaped, with a cylinder fixedly connected to the rear of each clamping plate, and the cylinder being fixed to a ring-shaped worktable.

[0008] In a further technical solution, the cooling unit includes a coolant tank, which is located outside the annular worktable. A water pump is installed on the top of the coolant tank, and the water pump is connected to a nozzle via a pipeline. The nozzle is installed at the free end of the central robotic arm, and a solenoid valve is installed on the pipeline near the water pump.

[0009] In a further technical solution, the cleaning unit includes a high-pressure air nozzle and a clean water nozzle, which are installed above the workstation.

[0010] In a further technical solution, the support unit includes several casters and a directional rod. A support rod is installed on the upper part of the casters, the other end of the support rod is fixed to the annular worktable, the directional rod is fixed to the inner side of the annular worktable, and the other end is movably connected to the base of the central robotic arm.

[0011] In a further technical solution, the drive unit includes a geared motor, and a gear is provided on the shaft of the geared motor. The gear is movably connected to an annular toothed groove provided at the bottom of the annular worktable.

[0012] In a further technical solution, a control console is installed on one side of the circular worktable, and the control console is electrically connected to the central robotic arm, pneumatic clamp, cooling unit, cleaning unit, support unit and drive unit.

[0013] Beneficial effects: This invention features multiple workstations on a circular worktable, including loading, drilling, cleaning, and unloading. Each workstation can perform different processes simultaneously, forming a continuous production line. A drive unit automatically switches workstations on the circular worktable, eliminating downtime and significantly shortening the single-piece processing cycle, thus improving batch production efficiency. The clear division of labor across multiple workstations means workers only need to operate at fixed loading and unloading stations, eliminating the need for frequent tooling changes. Pneumatic clamps automatically clamp via cylinder-driven clamping plates, eliminating the need for manual clamping. The inverted L-shaped clamping plates are adaptable to various metal product shapes, reducing clamping frequency and accommodating diverse production needs. The multi-workstation collaboration, automatic switching, and integrated design effectively solve the problems of low efficiency, cumbersome operation, and poor adaptability of traditional drilling fixtures, making it particularly suitable for small-to-medium batch, multi-variety metal product drilling processing scenarios. Attached Figure Description

[0014] This utility model will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 A schematic diagram (I) of a multi-station metal product drilling fixture provided for an embodiment of this utility model; Figure 2 A top view of a multi-station metal product drilling fixture provided for an embodiment of this utility model; Figure 3 A side view of a multi-station metal product drilling fixture provided for an embodiment of this utility model.

[0015] in: 1. Circular worktable; 2. Central robotic arm; 3. Pneumatic clamp; 4. Cooling unit; 5. Cleaning unit; 6. Support unit; 7. Drive unit; 8. Camera; 9. Drill bit; 10. Control console; 101. Circular toothed groove; 301. Clamping plate; 302. Cylinder; 401. Coolant tank; 402. Water pump; 403. Nozzle; 404. Solenoid valve; 501. High-pressure air nozzle; 502. Clean water nozzle; 601. Casters; 602. Support rod; 603. Directional rod; 701. Gear motor; 702. Gear. Detailed Implementation

[0016] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] Example: like Figures 1 to 3 As shown, this utility model embodiment provides a multi-station metal product drilling fixture, including a ring-shaped worktable 1, a central robotic arm 2, a pneumatic clamp 3, a cooling unit 4, a cleaning unit 5, a support unit 6, and a drive unit 7. The ring-shaped worktable 1 is provided with at least two workstations. The central robotic arm 2 is located at the center of the ring-shaped worktable 1. The pneumatic clamp 3 is located at the workstation. The cooling unit 4 and the cleaning unit 5 are installed on the outside of the ring-shaped worktable 1. The support unit 6 and the drive unit 7 are installed at the bottom of the ring-shaped worktable 1.

[0018] This embodiment of the invention utilizes a circular worktable 1 made of metal. The worktable surface is flat and at least two workstations are evenly distributed along the circumference. Each workstation has pre-drilled holes for pneumatic clamps 3. The circular worktable 1, with its multi-workstation design, enables continuous workpiece transfer between different processes, avoiding the space waste of traditional linear worktables. A central robotic arm 2 is fixed to the center of the circular worktable 1 via a base, its arm span covering all workstations. Its end can carry drilling tools and auxiliary components. The central robotic arm 2 allows for centralized operation, reducing redundant setups and lowering equipment costs. Pneumatic clamps 3 are bolted to preset positions at each workstation and connected to the air supply pipeline of the circular worktable 1. A cooling unit 4 and a cleaning unit 5 are mounted on the outside of the circular worktable 1 via brackets, corresponding to the drilling and cleaning workstations respectively. In the support unit 6, the bottom frame is welded to the bottom of the circular worktable 1, and the power components of the drive unit 7 are integrated inside the support frame. This integrated layout of functional units shortens the workpiece transfer path and improves processing efficiency. The integrated design of the bottom support and drive unit 7 ensures the stability of equipment operation.

[0019] In one feasible implementation scheme, such as Figures 1 to 3 As shown, the workstations include a loading station, a drilling station, a cleaning station, and a unloading station. The loading station is located at the beginning of the circular worktable 1 and is equipped with a manual or automatic loading mechanism; the drilling station is located at the next position clockwise / counterclockwise from the loading station, corresponding to the drilling range of the central robotic arm 2; the cleaning station is adjacent to the drilling station and is equipped with the nozzle assembly of the cleaning unit 5; the unloading station is located at the last process position and is equipped with a workpiece collection trough or conveying device. Each workstation is sequentially connected by the rotation of the circular worktable 1, forming a closed-loop production process. Clear workstation division of labor achieves full automation of the "loading-drilling-cleaning-unloading" process, reducing manual intervention; the closed-loop flow design allows each workstation to operate synchronously, improving equipment utilization; and standardized process sequences reduce operational complexity and facilitate batch production control.

[0020] In one feasible implementation scheme, such as Figures 1 to 3 As shown, the free end of the central robotic arm 2 is equipped with a drill bit 9 and a camera 8. The drill bit 9 and camera 8 are fixed to the free end of the central robotic arm 2 by a bracket, with the lens facing coaxially with the drilling tool or at a preset angle. The camera 8 is electrically connected to the image processing module of the control console 10 to acquire images of the workpiece positioning marks or drilling positions in real time. The visual positioning function improves drilling position accuracy and can compensate for workpiece placement deviations; real-time image feedback facilitates monitoring of drilling quality and reduces the scrap rate; it replaces traditional mechanical positioning and adapts to the flexible processing needs of workpieces of different specifications.

[0021] In one feasible implementation scheme, such as Figures 1 to 3As shown, the pneumatic clamp 3 includes several clamping plates 301, each clamping plate 301 being an inverted L-shape. A cylinder 302 is fixedly connected to the rear of each clamping plate 301, and the cylinder 302 is fixed to the annular worktable 1. By machining the clamping plates 301 into an inverted L-shape, the horizontal portion is used to clamp the top of the workpiece, and the vertical portion is used to limit the lateral displacement of the workpiece. The rear of the clamping plates 301 is fixed to the piston rod of the cylinder 302 by bolts. The cylinder body of the cylinder 302 is installed at the bottom of the annular worktable 1, and the air pipe is connected to the air source system. Each station has 2-4 symmetrically distributed clamping plates 301 according to the workpiece size, and the cylinder 302 is synchronously controlled to extend and retract via the control console 10. The inverted L-shaped structure achieves double fixation of the workpiece, avoiding workpiece vibration during drilling; the pneumatic drive has a fast response speed, adapting to the rhythm of automated continuous production; the modular design facilitates the replacement of clamping plates 301 of different sizes, adapting to various workpiece clamping needs.

[0022] In one feasible implementation scheme, such as Figures 1 to 3 As shown, the cooling unit 4 includes a coolant tank 401, which is located outside the annular worktable 1. A water pump 402 is mounted on top of the coolant tank 401, and the water pump 402 is connected to a nozzle 403 via a pipeline. The nozzle 403 is installed at the free end of the central robotic arm 2, and a solenoid valve 404 is installed on the pipeline near the water pump 402. By installing the water pump 402 on top of the coolant tank 401, one end is connected to the water outlet of the water pump 402, and the other end is connected to the nozzle 403 at the end of the central robotic arm 2 via a rotary joint. The solenoid valve 404 is installed on the pipeline near the water pump 402 and electrically connected to the control console 10, triggering a switch via a robotic arm position signal. The nozzle 403 moves with the robotic arm, precisely spraying coolant towards the drilling area. The solenoid valve 404 controls the on / off state in real time, avoiding waste during non-processing and preventing coolant residue from affecting subsequent processes; effectively reducing tool temperature during drilling and extending tool life.

[0023] In one feasible implementation scheme, such as Figures 1 to 3 As shown, the cleaning unit 5 includes a high-pressure air nozzle 501 and a clean water nozzle 502, which are installed above the workstation. The clean water nozzle 502 is connected to a high-pressure water pipeline; the high-pressure air nozzle 501 is located downstream of the clean water nozzle 502 and connected to a compressed air system. Both are triggered by the control console 10 according to a preset program. First, clean water is sprayed to rinse away debris, followed by a high-pressure air drying. This two-step cleaning process thoroughly removes coolant residue and metal debris from the workpiece surface; it avoids the inefficiency and secondary contamination of manual cleaning, ensuring the quality of subsequent processing or assembly of the workpiece; the high-pressure air drying reduces the workpiece drying time, allowing it to proceed directly to the next process or be stored. In one feasible implementation scheme, such as Figures 1 to 3As shown, the support unit 6 includes several casters 601 and a guide rod 603. A support rod 602 is mounted on the upper part of each caster 601. The other end of the support rod 602 is fixed to the annular worktable 1. The guide rod 603 is fixed to the inner side of the annular worktable 1, and its other end is movably connected to the base of the central robotic arm 2. Several casters 601 are evenly distributed along the bottom circumference of the annular worktable 1. The support rod 602 is welded to the worktable. The guide rod 603 is made of hollow steel pipe, with one end welded to the inner side of the annular worktable 1 and the other end movably connected to the base of the central robotic arm 2 via a bearing, ensuring the concentricity of the annular worktable 1 during rotation. When the equipment moves, the brakes on the casters 601 are released; when fixed, the brakes are locked and the height of the guide rod 603 is adjusted. The 601 casters make the equipment easy to move and adapt to workshop layout adjustments; the guide rod 603 works in conjunction with the casters 601 to ensure the stability of the circular worktable 1 when rotating and to enhance the overall rigidity of the equipment; the level of the worktable can be finely adjusted by the guide rod 603 to improve machining accuracy.

[0024] In one feasible implementation scheme, such as Figures 1 to 3 As shown, the drive unit 7 includes a geared motor 701, and a gear 702 is mounted on the shaft of the geared motor 701. The gear 702 is movably connected to an annular toothed groove 101 located at the bottom of the annular worktable 1. By fixing the geared motor 701 to the bottom of the support unit 6, the shaft of the geared motor 701 is connected to the gear 702 via a key, and the gear 702 meshes with the annular toothed groove 101 machined at the bottom of the annular worktable 1. The geared motor 701 is electrically connected to the PLC of the control console 10, and station positioning is achieved through an encoder. The gear 702 transmission structure ensures smooth rotation of the annular worktable 1 and avoids impact during station switching; the geared motor 701 ensures the consistency of the workpiece position at each station; the geared motor 701 provides sufficient torque to drive a fully loaded workpiece to operate stably, adapting to the needs of mass production.

[0025] In one feasible implementation scheme, such as Figures 1 to 3 As shown, a control console 10 is installed on one side of the circular workbench 1. The control console 10 is electrically connected to the central robotic arm 2, pneumatic gripper 3, cooling unit 4, cleaning unit 5, support unit 6, and drive unit 7. The control console 10 is electrically connected to the central robotic arm 2, pneumatic gripper 3, cooling unit 4, cleaning unit 5, support unit 6, and drive unit 7 respectively via cables; centralized control enables the coordinated work of each unit, reducing manual operation steps.

[0026] In the specific implementation of the multi-station metal product drilling fixture provided in this embodiment of the utility model, before starting the equipment, the operator completes the initialization settings through the control console 10 on one side of the circular worktable 1, confirming that the universal wheels 601 in the support unit 6 are locked and braked, the directional rod 603 is adjusted to a horizontal state, the coolant tank 401 in the cooling unit 4 has sufficient liquid level, and the pressure of the high-pressure water pipeline and compressed air system in the cleaning unit 5 is normal. First, the metal workpiece to be processed is placed in the positioning area of ​​the loading station. The control console 10 triggers the four symmetrically distributed inverted L-shaped clamps 301 of the pneumatic clamp 3 of this station to extend synchronously under the drive of the cylinder 302, with the horizontal part pressing the top of the workpiece and the vertical part restricting the lateral displacement, thus completing the workpiece fixation. Subsequently, the reduction motor 701 meshes with the annular toothed groove 101 at the bottom of the circular worktable 1 through the gear 702, driving the circular worktable 1 to rotate clockwise, accurately sending the fixed workpiece from the loading station to the drilling station. At this time, the loading station can simultaneously place and clamp the next workpiece, realizing multi-station parallel operation. During drilling operations, the camera 8 at the free end of the central robotic arm 2 first performs visual positioning of the workpiece. An industrial-grade high-definition camera captures images of the positioning marks on the workpiece surface and transmits them to the image processing module of the control console 10 to compensate for workpiece placement deviations. After positioning, the drilling tool mounted on the robotic arm moves downwards, and simultaneously, the cooling unit 4 is activated. The control console 10 triggers the solenoid valve 404 via the robotic arm position signal, and the water pump 402 delivers the coolant from the coolant tank 401 through a high-pressure hose to the nozzle 403 at the end of the robotic arm, precisely spraying it onto the drilling area to reduce tool temperature in real time. During drilling, the camera 8 continuously monitors the hole diameter and depth to ensure processing quality. After drilling is completed, the drive unit 7 rotates the circular worktable 1 again, sending the workpiece to the cleaning station. The control console 10, according to a preset program, first triggers the clean water nozzle 502, using high-pressure clean water to rinse away metal debris and coolant residue from the workpiece surface; the high-pressure air nozzle 501 is activated, using a strong airflow to dry the workpiece surface, preventing residual liquid from affecting subsequent processes. After cleaning, the workpiece rotates with the circular worktable 1 to the unloading station. The control console 10 instructs the pneumatic clamp 3 cylinder 302 of this station to retract, the clamping plate 301 to release the workpiece, and the unloading device to transfer the processed workpiece to the storage area. Throughout the process, the control console 10 displays the status of each station in real time. If any abnormality occurs, an audible and visual alarm is immediately triggered and the operation is paused. After the operator investigates and handles the issue, the machine can be reset and resumed by pressing the emergency stop button. After batch processing is completed, the operator switches the control console 10 to manual mode, turns off the power to each unit, and completes the equipment shutdown. Through the above process, this fixture achieves fully automated closed-loop production of "loading-drilling-cleaning-unloading", improving the processing efficiency of synchronous operation at each station. At the same time, through visual positioning, precise cooling, and cleaning, it ensures the processing accuracy and surface quality of the workpiece, significantly reducing labor costs and the scrap rate.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A multi-station metal product drilling fixture, characterized in that: The device includes a circular worktable (1), a central robotic arm (2), a pneumatic clamp (3), a cooling unit (4), a cleaning unit (5), a support unit (6), and a drive unit (7). The circular worktable (1) has at least two workstations. The central robotic arm (2) is located at the center of the circular worktable (1). The pneumatic clamp (3) is located at the workstation. The cooling unit (4) and the cleaning unit (5) are installed on the outside of the circular worktable (1). The support unit (6) and the drive unit (7) are installed at the bottom of the circular worktable (1).

2. The multi-station metal product drilling fixture according to claim 1, characterized in that: The workstations include a loading station, a drilling station, a cleaning station, and a unloading station.

3. The multi-station metal product drilling fixture according to claim 1, characterized in that: The free end of the central robotic arm (2) is equipped with a drill bit (9) and a camera (8).

4. The multi-station metal product drilling fixture according to claim 1, characterized in that: The pneumatic clamp (3) includes several clamping plates (301), the clamping plates (301) are inverted L-shaped, and a cylinder (302) is fixedly connected to the rear of the clamping plate (301). The cylinder (302) is fixed on the annular worktable (1).

5. The multi-station metal product drilling fixture according to claim 1, characterized in that: The cooling unit (4) includes a coolant tank (401), which is located outside the ring workbench (1). A water pump (402) is installed on the top of the coolant tank (401). The water pump (402) is connected to a nozzle (403) through a pipeline. The nozzle (403) is installed at the free end of the central robotic arm (2). A solenoid valve (404) is installed on the pipeline near the water pump (402).

6. The multi-station metal product drilling fixture according to claim 1, characterized in that: The cleaning unit (5) includes a high-pressure air nozzle (501) and a clean water nozzle (502), which are installed above the workstation.

7. The multi-station metal product drilling fixture according to claim 1, characterized in that: The support unit (6) includes several casters (601) and a guide rod (603). A support rod (602) is installed on the upper part of the caster (601). The other end of the support rod (602) is fixed to the circular worktable (1). The guide rod (603) is fixed to the inner side of the circular worktable (1) and the other end is movably connected to the base of the central robotic arm (2).

8. The multi-station metal product drilling fixture according to claim 1, characterized in that: The drive unit (7) includes a geared motor (701), and a gear (702) is provided on the shaft of the geared motor (701). The gear (702) is movably connected to the annular tooth groove (101) provided at the bottom of the annular worktable (1).

9. A multi-station metal product drilling fixture according to claim 1, characterized in that: A control console (10) is installed on one side of the circular workbench (1), and the control console (10) is electrically connected to the central robotic arm (2), pneumatic clamp (3), cooling unit (4), cleaning unit (5), support unit (6) and drive unit (7).

Images