Manipulator automatic feeding and discharging mechanism for spark erosion drilling machine

Abstract

The utility model discloses a mechanical arm automatic feeding and discharging mechanism for a spark erosion drilling machine. The mechanical arm automatic feeding and discharging mechanism comprises a machine table, a mechanical arm, a feeding table and a discharging table. The mechanical arm comprises a mechanical arm fixed to the machine table and a material clamping part located at the front end of the mechanical arm, the material clamping part comprises an outer shell and an adsorption nozzle located at the end of the shell, the outer wall of the outer shell is connected with an air pipe connector, and after the air pipe connector is communicated, the adsorption nozzle can adsorb workpieces and transfer the workpieces to the discharging table for discharging. According to the automatic feeding and discharging device, the punched workpieces are automatically fed and discharged, the labor intensity of workers is reduced, and the punching efficiency of the workpieces is improved.

Description

Technical Field

[0001] This utility model relates to the field of drilling machine equipment technology, and in particular to an automated loading and unloading mechanism for a robotic arm used in an electrical discharge drilling machine. Background Technology

[0002] An electrical discharge drilling machine, also known as an electrical discharge punch or electrical discharge fine hole generator, works by using a continuously moving, hollow, thin metal tube (as an electrode) to perform pulsed spark discharge on the workpiece to remove metal and create holes. Electrical discharge drilling machines are generally used as auxiliary equipment for wire electrical discharge cutting machines, processing wire-threading holes, spinnerets, spinneret holes, filter plates, sieve plates, engine blades, cylinder cooling holes, and oil and air passages in hydraulic and pneumatic valve bodies. Unlike wire electrical discharge cutting machines and forming machines, its pulsed electrode is a hollow copper tube, with the medium passing through a fine hole in the center of the tube for cooling and chip removal.

[0003] Currently, workpieces are typically loaded and unloaded manually during EDM machining. However, manual loading and unloading is inefficient and slow. Therefore, there is a need to provide an automated loading and unloading mechanism using a robotic arm for EDM machines to solve the above problems. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide an automated loading and unloading mechanism for a robotic arm used in an EDM drilling machine, which automatically loads and unloads workpieces after drilling, reducing the labor intensity of workers and improving the drilling efficiency of workpieces.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: an automated loading and unloading mechanism for a robotic arm used in an EDM drilling machine, comprising a machine base, a robotic arm, a loading platform, and a unloading platform; the robotic arm includes a robotic arm fixed on the machine base and a clamping part located at its front end, the clamping part includes an outer shell and an adsorption nozzle located at the end of the shell, the outer wall of the outer shell is connected to an air pipe connector, and after the air pipe connector is connected, the adsorption nozzle can adsorb the workpiece and transfer it to the unloading platform for unloading.

[0006] Furthermore, the suction nozzle has a limiting groove extending inward at one end where it picks up the workpiece. The workpiece includes an suction surface and a protrusion at the top of one end. The limiting groove matches the protrusion.

[0007] The protrusion is set on the adsorption surface, and the adsorption surface can completely cover the protrusion in cross-section. Specifically, when the suction nozzle of the robot arm grasps the workpiece, the protrusion on the workpiece can be smoothly inserted into the limiting groove on the suction nozzle. This limiting groove allows the suction nozzle to accurately adsorb the workpiece, and the entire workpiece always remains coaxial with the suction nozzle. This allows the robot arm to place the workpiece in any position, avoiding positional displacement of the workpiece when it is inserted into the workpiece placement carrier below the EDM drilling machine, which would affect the subsequent drilling accuracy.

[0008] Furthermore, an abutment groove is formed at the end of the suction nozzle extending towards the limiting groove, and the diameter and depth of the limiting groove are greater than the diameter and depth of the abutment groove. After the workpiece is inserted into the suction nozzle, the protrusion on it inserts into the limiting groove. At this time, the suction surface on the workpiece abuts against the end of the abutment groove near the limiting groove, so as to form a small sealing space between the suction surface and the inner cavity of the outer shell. This allows the external air pressure to better press the workpiece tightly inside the suction nozzle when the air pump is pumping air, further ensuring that the workpiece is stably adsorbed.

[0009] Furthermore, the loading platform includes a platform base and a support platform. Multiple workpiece placement slots are formed along the height of the support platform, and these slots are arranged in an array. The multiple workpiece placement slots allow for the simultaneous insertion of multiple workpieces, enabling workers to load them uniformly and reducing their workload.

[0010] Furthermore, a horizontal moving platform is slidably mounted on the machine base, with the loading platform located on the horizontal moving platform and the unloading platform located on the machine base. This facilitates the robot arm to pick up materials from the loading platform in real time or place the punched workpieces into the unloading platform.

[0011] Furthermore, the multiple workpiece placement slots located in the same row are interconnected in pairs, and the workpiece placement slots in the same row near one side of the support platform are respectively connected to the main connecting pipe set on the support platform through a connecting branch pipe. The main connecting pipe has an opening for connecting to an air inlet pipe.

[0012] Furthermore, the machine platform is also equipped with several drilling machines and EDM machines. These drilling machines and EDM machines are connected to the machine platform via support frames. The robotic arm can move workpieces from the loading platform to below the drilling machines or EDM machines. This allows a single device to handle drilling of multiple workpieces with different hole diameters and shapes, effectively reducing the company's processing and production costs. The robotic arm's rapid material handling also improves the drilling efficiency.

[0013] The beneficial effects of this utility model are:

[0014] In this invention, the robotic arm and its suction nozzle work together to automatically load and unload the workpiece after it has been punched. It can automatically pick up the workpiece on the loading platform or pick up the punched workpiece and place it on the unloading platform, which can effectively reduce the labor intensity of the workers and improve the punching efficiency of the workpiece. Attached Figure Description

[0015] Figure 1 This is an axonometric view of the overall structure of an embodiment of the present invention;

[0016] Figure 2 This is an isometric view of the overall structure of the robotic arm automated loading and unloading mechanism of this utility model applied to an EDM drilling machine according to an embodiment of the present utility model;

[0017] Figure 3 This is an isometric view of the overall structure of the workpiece according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic cross-sectional view of the overall structure of the loading platform according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the robotic arm structure according to an embodiment of the present invention;

[0020] In the diagram: 1. Machine base; 2. Support frame; 3. Drilling machine; 4. EDM machine; 5. Horizontal moving table; 6. Robotic arm; 61. Robotic arm; 62. Clamping part; 621. Outer shell; 622. Adsorption nozzle; 623. Limiting groove; 63. Air pipe connector; 7. Workpiece; 71. Adsorption surface; 72. Protrusion; 8. Loading platform; 81. Platform base; 82. Support platform; 9. Unloading platform; 10. Workpiece placement slot; 11. Main connecting pipe; 12. Branch connecting pipe; 13. Air pipe. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] See appendix Figures 1 to 5 As shown in this embodiment, an automated loading and unloading mechanism for an EDM drilling machine includes a machine base 1, a robotic arm 6, a loading platform 8, and an unloading platform 9. The loading platform 8 can accommodate multiple workpieces to be drilled. After the operator places the workpieces on the loading platform 8 in sequence, the robotic arm 6 can automatically load them and move them to the drilling location for drilling. After drilling is completed, the robotic arm 6 places the drilled workpieces 7 in sequence on the unloading platform 9, which facilitates the operator to unload multiple workpieces as a whole without the operator having to frequently pick up the workpieces, and also avoids the workpieces being placed haphazardly.

[0023] The robotic arm 6 includes a robotic arm 61 fixed on the machine base 1 and a clamping part 62 located at its front end. The clamping part 62 includes an outer shell 621 and an adsorption nozzle 622 located at the end of the shell. An air pipe connector 63 is connected to the outer wall of the outer shell 621. After the air pipe connector 63 is connected, the adsorption nozzle 622 can adsorb the workpiece and move it to the unloading platform 9 for unloading. The air pipe connector 63 is connected to an externally installed air pump. When one end of the workpiece is inserted into the adsorption nozzle 622, the air pump draws air to firmly adsorb the workpiece in the adsorption nozzle 622. Then, the robotic arm 61 operates to move the workpiece to the workpiece placement carrier at the piercing station for piercing. After the workpiece is placed in the workpiece placement carrier, the air pump is turned off. After piercing is completed, the robotic arm 61 repeats the above operation, adsorbs the workpiece, moves it, and places the workpiece in the unloading platform 9, so that the unloading platform 9 can be filled and unloaded at the same time.

[0024] Through the cooperation of the robotic arm 61 and its suction nozzle 622, the workpieces after drilling can be automatically loaded and unloaded. The workpieces on the loading platform 8 can be automatically picked up or the workpieces after drilling can be automatically placed on the unloading platform 9, which can effectively reduce the labor intensity of the workers and improve the drilling efficiency of the workpieces.

[0025] The suction nozzle 622 has a limiting groove 623 extending inward at one end that picks up the workpiece. The workpiece includes a suction surface 71 and a protrusion 72 located at the top of one end. The limiting groove 623 matches the protrusion 72.

[0026] The protrusion 72 is provided on the adsorption surface 71, and the adsorption surface 71 can completely cover the protrusion 72 in cross-section. Specifically, when the adsorption nozzle 622 on the robot arm 6 grasps the workpiece, the protrusion 72 on the workpiece can be smoothly inserted into the limiting groove 623 on the adsorption nozzle 622. The limiting groove 623 enables the adsorption nozzle 622 to accurately adsorb the workpiece, and the entire workpiece always remains coaxial with the adsorption nozzle 622. This allows the robot arm 6 to place the workpiece in any position, avoiding positional shift when the workpiece is inserted into the workpiece placement carrier below the EDM drilling machine 3, which would affect the subsequent drilling accuracy.

[0027] The suction nozzle 622 has an abutment groove extending from its end toward the limiting groove 623. The diameter and depth of the limiting groove 623 are greater than the diameter and depth of the abutment groove. After the workpiece is inserted into the suction nozzle 622, the protrusion 72 on it inserts into the limiting groove 623. At this time, the suction surface 71 on the workpiece abuts against the end of the abutment groove near the limiting groove 623, so as to form a small sealing space between the suction surface 71 and the inner cavity of the outer shell 621. This allows the external air pressure to better press the workpiece into the suction nozzle 622 when the air pump is pumping air, further ensuring that the workpiece is stably adsorbed.

[0028] The loading platform 8 includes a platform base 81 and a support platform 82. The support platform 82 has multiple workpiece placement slots 10 arranged in an array along its height. The multiple workpiece placement slots 10 allow multiple workpieces to be inserted simultaneously, enabling workers to load them uniformly and reducing their workload.

[0029] The support platform 82 is detachably mounted on the material table base 81, facilitating the replacement of the support platform 82 with a new workpiece inserted, thereby improving the subsequent drilling efficiency. Specifically, the support platform 82 can be secured to the material table base 81 by locking screws.

[0030] A horizontal moving platform 5 is also slidably mounted on the machine base 1. The loading platform 8 is located on the horizontal moving platform 5, and the unloading platform 9 is located on the machine base 1. This facilitates the robot arm 6 to pick up materials from the loading platform 8 in real time or to place the punched workpieces into the unloading platform 9.

[0031] The multiple workpiece placement slots 10 located in the same row are interconnected in pairs. The workpiece placement slots 10 in the same row near the side of the support platform 82 are respectively connected to the main connection pipe 11 provided on the support platform 82 through a connecting branch pipe 12. The main connection pipe 11 has an opening that connects to the air inlet pipe 13.

[0032] After the workpieces 7 are sequentially loaded onto the loading platform 8, the air pump connected to the air inlet pipe 13 starts to work and evacuate the support platform 82. The gas in the support platform 82 flows through each connecting branch pipe 12 to the connecting main pipe 11 and is finally extracted from the connecting main pipe 11. At this time, the workpiece can be firmly adsorbed into the workpiece placement slot 10 on the support platform 82, which avoids the workpiece tilting phenomenon when the robot arm 6 grasps the workpiece, facilitates the robot arm 6 to grasp, and improves the material picking speed of the robot arm 6.

[0033] It should be noted that the connecting pipe 11 has only one opening so that a pressure difference can be formed between the support platform 82 and the outside after the air is pumped out.

[0034] The machine base 1 is also equipped with several drilling machines 3 and EDM machines 4. These drilling machines 3 and EDM machines 4 are connected to the machine base 1 via a support frame 2. The robotic arm 6 can move workpieces from the loading table 8 to below the drilling machines 3 or EDM machines 4. This allows a single device to handle drilling of multiple workpieces with different hole diameters and shapes, effectively reducing the company's processing and production costs. The rapid material handling operation of the robotic arm 6 also improves the drilling efficiency of the workpieces.

[0035] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. An automated loading and unloading mechanism for a robotic arm used in an electrical discharge machining (EDM) machine, characterized in that: It includes a machine base, a robotic arm, a loading platform, and a unloading platform; the robotic arm includes a robotic arm fixed on the machine base and a clamping part located at its front end, the clamping part includes an outer shell and an adsorption nozzle located at the end of the shell, the outer wall of the outer shell is connected to an air pipe connector, after the air pipe connector is connected, the adsorption nozzle can adsorb the workpiece and transfer it to the unloading platform for unloading.

2. The automated loading and unloading mechanism for a robotic arm used in an EDM drilling machine according to claim 1, characterized in that: The suction nozzle has a limiting groove extending inward at one end that picks up the workpiece. The workpiece includes a suction surface and a protrusion at the top of one end. The limiting groove matches the protrusion.

3. The automated loading and unloading mechanism for a robotic arm used in an EDM drilling machine according to claim 2, characterized in that: The suction nozzle has an abutment groove extending from its end toward the limiting groove, and the diameter and depth of the limiting groove are greater than the diameter and depth of the abutment groove.

4. The automated loading and unloading mechanism for a robotic arm used in an EDM drilling machine according to claim 1, characterized in that: The loading platform includes a platform base and a support platform. The support platform has multiple workpiece placement slots along its height direction, and the multiple workpiece placement slots are arranged in an array.

5. The automated loading and unloading mechanism for a robotic arm used in an EDM drilling machine according to claim 4, characterized in that: A horizontal moving platform is also slidably arranged on the machine base, the loading platform is located on the horizontal moving platform, and the unloading platform is located on the machine base.

6. The automated loading and unloading mechanism for a robotic arm used in an EDM drilling machine according to claim 4, characterized in that: The multiple workpiece placement slots located in the same row are interconnected in pairs. The workpiece placement slots in the same row that are close to one side of the support platform are connected to the main connecting pipe set on the support platform through a connecting branch pipe. The main connecting pipe has an opening for connecting to an air inlet pipe.

7. The automated loading and unloading mechanism for a robotic arm used in an EDM drilling machine according to claim 1, characterized in that: The machine platform is also equipped with several drilling machines and EDM machines. The drilling machines and EDM machines are connected to the machine platform through a support frame. The robot arm can move the workpiece on the loading platform to the bottom of the drilling machine or EDM machine.

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