Electric corrosion protection aluminum ring automatic clamping manipulator tooling

Abstract

The utility model relates to the technical field of tooling clamps, in particular to an electric corrosion protection aluminum ring automatic clamping manipulator tooling which comprises a first tooling, a suction cup support, a suction cup assembly and an air blowing assembly, the suction cup support is connected with an extension support, and the suction cup assembly and the air blowing assembly are both arranged on the suction cup support. The suction cup assembly forms a surrounding structure outside the air blowing assembly. The second tooling comprises an inner supporting claw cylinder and an inner supporting clamping claw, the inner supporting claw cylinder is connected with one side of the side plate, and the other side of the side plate is connected with the extension bracket; the working end of the first tooling and the working end of the second tooling are located on the same side, and the first tooling is arranged at the upper end of the second tooling. And after the cutting fluid is removed through the air blowing assembly, negative pressure suction is carried out, the effectiveness of negative pressure picking each time is kept, and the technology is suitable for batch precision machining of the metal annular parts and particularly suitable for machining scenes needing high precision and high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, specifically to a tooling for an automatic clamping robot end effector for electro-erosion protective aluminum rings. Background Technology

[0002] Electrolytic corrosion protection rings are used in electric motors, primarily in electric motors for new energy vehicles, and in high-power electric motor sets in mines and power plants. The production of these rings involves multiple processes, and some workstations present difficulties in handling and transferring them. Traditionally, manual operation was used for this process. However, with the increasing mechanization of the industry, more and more industrial robots are replacing manual labor, significantly improving production efficiency. In this field, some large manufacturers have already equipped their production lines with automated production lines, using robotic arms in conjunction with end effectors for handling and transferring. Most companies choose negative pressure end effectors for picking up and transferring items between workstations.

[0003] Patent application CN201920085458.X discloses an end effector, including a generator body and a vacuum pump, comprising: a clamping mechanism and an end effector body; wherein, the clamping mechanism includes: a clamping plate assembly, a drive mechanism, and a guide mechanism; the guide mechanism is fixedly connected to the end effector body; the drive mechanism is connected to the clamping plate assembly, and the clamping plate assembly is connected to the guide mechanism. However, due to the residual cutting fluid on the surface during the production process of the electro-erosion protective aluminum ring, and because the clamping mechanism cannot be used to clamp the entire electro-erosion protective aluminum ring at certain workstations to ensure complete encapsulation, it can only be picked up by negative pressure. The presence of cutting fluid may lead to picking failure, resulting in product drop and a low yield of qualified finished products. Utility Model Content

[0004] To address the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic clamping manipulator end-effector tooling for electro-erosion protective aluminum rings. By adding a blowing component to the first end-effector, the cutting fluid is removed by the blowing component and then negative pressure suction is applied, ensuring the effectiveness of each negative pressure pickup and avoiding the low yield of qualified finished products caused by product drops and damage.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A tooling fixture for an automatic clamping robot for electro-erosion protection aluminum rings includes:

[0007] A robotic arm connecting rod, on which a mounting bracket is provided;

[0008] The mounting bracket includes an interconnected base and an extension bracket;

[0009] The first end effector includes a suction cup bracket, a suction cup assembly, and a blower assembly. The suction cup bracket is connected to the extension bracket. The suction cup assembly and the blower assembly are both disposed on the suction cup bracket. The suction cup assembly forms an enclosing structure around the blower assembly.

[0010] The second end effector includes an inner support claw cylinder and an inner support gripper. The inner support claw cylinder is connected to one side of the side plate, and the other side of the side plate is connected to the extension bracket.

[0011] The working ends of the first end effector and the second end effector are located on the same side, and the first end effector is disposed above the second end effector.

[0012] As a preferred embodiment of the present invention, the suction cup bracket includes a first mounting surface and a second mounting surface, and at least three suction cup components are arranged in a circumferential array on the first mounting surface. The first mounting surface is provided with air blowing holes, and the air blowing components are inserted into the air blowing holes.

[0013] As a preferred embodiment of the present invention, the length of the blower assembly extending beyond the first mounting surface is shorter than the length of the suction cup assembly extending beyond the first mounting surface.

[0014] As a preferred embodiment of the present invention, the air blowing hole is located at the center of the first mounting surface, the air blowing assembly is inserted into the air blowing hole, and a plurality of suction cup assemblies are arranged in a circular array around the air blowing assembly with the center of the air blowing hole as the center.

[0015] As a preferred embodiment of the present invention, the second mounting surface is connected to the extension bracket, the extension bracket is provided with a first connecting hole and a second connecting hole, the second mounting surface is provided with a fixing hole and a wire harness hole, the fixing hole is connected to the first connecting hole, the wire harness hole is connected to the second connecting hole, the diameter of the wire harness hole is larger than the diameter of the fixing hole, the horizontal position of the wire harness hole is the lowest point of the suction cup assembly, and the horizontal height of the wire harness hole is lower than the height of the blower assembly.

[0016] As a preferred embodiment of the present invention, the extension bracket is provided with an adjustment elongated hole below the lowest first connecting hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] During the processing of the electro-erosion protection aluminum ring, a blowing component is added to the first end pick-up device. Based on the vacuum neutralization mechanism of air-suction coupling, the cutting fluid is removed by the blowing component and then negative pressure suction is applied to ensure the effectiveness of each negative pressure pickup and avoid the low yield of qualified finished products caused by product drop and damage.

[0019] The mounting frame includes an interconnected base and an extension bracket. A second end effector is mounted on the base, and a first end effector is mounted on the extension bracket. The working ends of the first and second end effectors are located on the same side, enabling an automatic clamping robot end effector fixture to perform picking functions for different processing stations at least at different times. This high level of integration enhances the mechanization and improves work efficiency.

[0020] Chips and oil stains generated during processing can be cleaned up in a timely manner, keeping the tooling clean and in good working condition, thus extending the tooling's service life. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Fig. 1 This is a schematic diagram of the main structure of this utility model.

[0023] Fig. 2 This is a rear view of the present invention.

[0024] Fig. 3 This is a side view of the present invention. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] In metalworking processes (such as turning, milling, drilling, and grinding), cutting fluid (or cooling lubricant) typically plays the following roles:

[0028] Cooling effect: Reduces the temperature of the tool and workpiece, preventing thermal deformation.

[0029] Lubrication function: Reduces friction between the cutting tool and the aluminum ring, thus reducing wear.

[0030] Chip removal function: to flush away metal chips generated during cutting and keep the machined surface clean.

[0031] Rust prevention: Prevents oxidation or electrochemical corrosion of aluminum surfaces (especially aluminum alloys).

[0032] Because of these functions, the cutting fluid is continuously sprayed or coated on the surface of the aluminum ring during machining, resulting in its residue.

[0033] Therefore, electrochemical corrosion protection aluminum rings (mainly used to prevent electrochemical corrosion, such as precision parts in aerospace and electronics) are usually designed for sealing or protection purposes. They have small grooves or complex geometries, which make it easy for cutting fluid to seep in and difficult to completely drain, leaving cutting fluid residue on the surface during the machining process.

[0034] Considering the presence of cutting fluid, there are two main problems. The first is that the fluid fills the gap between the chuck and the aluminum ring, preventing the chuck from effectively establishing negative pressure. This is due to the incompressibility of the fluid; when the chuck attempts to extract air, the space occupied by the fluid cannot be quickly expelled, resulting in insufficient pressure drop within the chuck to attract the aluminum ring. In this case, the chuck may only be able to attract the fluid, not the aluminum ring itself.

[0035] The second scenario relates to sealing. Ideally, the suction cup needs to form a good seal with the surface of the object being suctioned to maintain negative pressure. If the cutting fluid causes unevenness on the contact surface, creating leakage channels, the negative pressure cannot be maintained, and the suction force decreases or disappears. Furthermore, the cutting fluid may alter the surface roughness, or the flow of the fluid may worsen the sealing effect.

[0036] In addition, the viscosity of the cutting fluid is also a factor. High-viscosity cutting fluid may form a viscous liquid film between the suction cup and the aluminum ring. This film may hinder gas discharge, thus affecting the formation of negative pressure. Furthermore, if the suction cup design does not take liquid discharge into account, liquid may be drawn into the pump during the suction process, leading to equipment malfunction.

[0037] To address this, the applicant now employs a method that involves adding a blower assembly to the first end effector. This assembly removes the cutting fluid and then applies negative pressure suction, ensuring the effectiveness of each negative pressure pickup. This technology is suitable for batch precision machining of metal ring-shaped parts, and is especially suitable for machining scenarios requiring high precision and high efficiency.

[0038] Refer to the instruction manual appendix Figs. 1-3 As shown, a tooling fixture for an automatic clamping robot for electro-erosion protection aluminum rings includes:

[0039] Robotic arm connecting rod 1, with a mounting bracket on it.

[0040] The mounting bracket includes an interconnected base 2 and an extension bracket 3.

[0041] The first end effector 4 includes a suction cup bracket 5, a suction cup assembly 6, and a blower assembly. The suction cup bracket 5 is connected to the extension bracket 3. The suction cup assembly 6 and the blower assembly are both mounted on the suction cup bracket 5. The suction cup assembly 6 forms an enclosing structure around the blower assembly.

[0042] The second end effector 7 includes an inner support claw cylinder 8 and an inner support gripper 9. The inner support claw cylinder 8 is connected to one side of the side plate 10, and the other side of the side plate 10 is connected to the extension bracket 3.

[0043] The working ends of the first end effector 4 and the second end effector 7 are located on the same side. The working end of the first end effector 4 is the end where the negative pressure suction cup and the air blowing hole 11 are located, and the working end of the second end effector 7 is the end where the inner support gripper 9 is located. The first end effector 4 is positioned above the second end effector 7. Here, the vertical direction is described with reference to the positional relationship between the robot arm connecting rod 1 and the mounting base 2. The direction from the robot arm connecting rod 1 to the mounting base 2 is considered upward, and the direction from the mounting base 2 to the robot arm connecting rod 1 is considered downward. Only with this configuration can the automatic clamping robot end effector tooling of the electro-erosion protective aluminum ring of this application be mounted on the robot arm during the picking up of the electro-erosion protective aluminum ring. The robot arm is not shown in the accompanying drawings. The robot arm and the robot arm connecting rod are connected by bolts. The robot arm of this application is preferably a six-joint robot, which can easily switch between the three end effectors. This application focuses on describing the first end effector 4 and the second end effector 7, but the accompanying drawings of the specification still show the third end effector 12. Following the movement of the robotic arm, the second end effector 7 first picks up the electro-erosion protective aluminum ring and moves it to the first processing position. The second end effector 7 is then released to perform the first processing step. After the first processing step is completed and the material is loaded, the robotic arm is controlled to move upwards, so that the first end effector 4 reaches the first processing position. The cutting fluid on the electro-erosion protective aluminum ring is blown away by the air blowing assembly. This cleans the electro-erosion protective aluminum ring and creates an effective environment for the suction cup assembly to work. The working principle of the suction cup assembly 6 is that the suction cup with a negative pressure hole is connected to the negative pressure channel. The negative pressure channel is connected to the air pump. Air is drawn from the outside through the suction cup, but when it is connected to the electro-erosion protective aluminum ring, a negative pressure effect is generated, which produces a huge suction force, firmly holding the electro-erosion protective aluminum ring and removing it from the first processing position.

[0044] Furthermore, after being picked up by the first end effector 4 and transferred to the next workstation, the suction cup assembly 6 can be controlled to slowly reduce the suction force, while the blower assembly blows air, thus steplessly achieving the task of placing it into the next workstation.

[0045] The suction cup bracket 5 includes a first mounting surface 13 and a second mounting surface 14. At least three suction cup assemblies 6 are arranged in a circumferential array on the first mounting surface 13. A blower hole 11 is provided at the center of the first mounting surface 13, and the blower assemblies are inserted into the blower hole 11. The blower assemblies are inserted into the blower hole 11, and the multiple suction cup assemblies 6 are arranged in a circumferential array around the blower assemblies with the center of the blower hole 11 as the center.

[0046] The length of the blower assembly extending from the first mounting surface 13 is shorter than the length of the suction cup assembly 6 extending from the first mounting surface 13.

[0047] The second mounting surface 14 is connected to the extension bracket 3. The extension bracket 3 is provided with a first connecting hole 15 and a second connecting hole 16. The second mounting surface 14 is provided with a fixing hole 17 and a wire harness hole 18. The fixing hole 17 is connected to the first connecting hole 15, and the wire harness hole 18 is connected to the second connecting hole 16. The diameter of the wire harness hole 18 is larger than the diameter of the fixing hole 17. The horizontal position of the wire harness hole 18 is the height of the suction cup assembly 6 at its lowest point. The horizontal height of the wire harness hole 18 is lower than the height of the blower assembly.

[0048] The extension bracket 3 has an adjustment slot 19 below the lowest first connection hole 15. This slot is used to adjust the relative distance between the extension bracket 3 and the base 2 according to actual production needs.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tooling for an automatic clamping robot for electro-erosion protection aluminum rings, characterized in that, include: A robotic arm connecting rod, on which a mounting bracket is provided; The mounting bracket includes an interconnected base and an extension bracket; The first end effector includes a suction cup bracket, a suction cup assembly, and a blower assembly. The suction cup bracket is connected to the extension bracket. The suction cup assembly and the blower assembly are both disposed on the suction cup bracket. The suction cup assembly forms an enclosing structure around the blower assembly. The second end effector includes an inner support claw cylinder and an inner support gripper. The inner support claw cylinder is connected to one side of the side plate, and the other side of the side plate is connected to the extension bracket. The working ends of the first end effector and the second end effector are located on the same side, and the first end effector is disposed above the second end effector.

2. The tooling for an automatic clamping robot for electro-erosion protection aluminum rings according to claim 1, characterized in that, The suction cup bracket includes a first mounting surface and a second mounting surface. At least three suction cup components are arranged in a circumferential array on the first mounting surface. The first mounting surface is provided with air blowing holes, and the air blowing components are inserted into the air blowing holes.

3. The tooling for an automatic clamping robot for electro-erosion protection aluminum rings according to claim 2, characterized in that, The length of the blower assembly extending beyond the first mounting surface is shorter than the length of the suction cup assembly extending beyond the first mounting surface.

4. The tooling for an automatic clamping robot for electro-erosion protection aluminum rings according to claim 3, characterized in that, The air blowing hole is located at the center of the first mounting surface. The air blowing assembly is inserted into the air blowing hole, and a plurality of suction cup assemblies are arranged in a circular array around the air blowing assembly with the center of the air blowing hole as the center.

5. The tooling for an automatic clamping robot for electro-erosion protection aluminum rings according to claim 2, characterized in that, The second mounting surface is connected to the extension bracket, which has a first connecting hole and a second connecting hole. The second mounting surface has a fixing hole and a wire harness hole. The fixing hole is connected to the first connecting hole, and the wire harness hole is connected to the second connecting hole. The diameter of the wire harness hole is larger than the diameter of the fixing hole. The horizontal position of the wire harness hole is at the lowest point of the suction cup assembly, and the horizontal height of the wire harness hole is lower than the height of the blower assembly.

6. The tooling for an automatic clamping robot for electro-erosion protection aluminum rings according to claim 5, characterized in that, The extension bracket has an adjustment slot below the lowest first connection hole.

Images