Blade disc grinding and polishing station

Abstract

The utility model provides a blade disc grinding and polishing station, and belongs to the technical field of automatic grinding and polishing equipment. The blade disc grinding and polishing station comprises a protection room, a machining space is formed in the protection room in a surrounding mode, and the protection room comprises a material changing door body used for communicating or closing the machining space with the outside; the isolation door is arranged in the processing space, and the isolation door and the part, provided with the material changing door body, of the protection room jointly define a grinding material storage containing space in a surrounding mode; the grinding and polishing mechanism is arranged in the machining space, the grinding and polishing mechanism comprises a rotary grinding material warehouse arranged in the grinding material warehouse containing space, the rotary grinding material warehouse can rotate around a vertical shaft and comprises a plurality of vertical side faces, and grinding materials for a belt sander are stored on each vertical side face; and the manipulator is used for assembling the grinding material to a corresponding grinding and polishing tool so as to carry out corresponding processing. The machining efficiency of the blade grinding and polishing station can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of automated grinding and polishing equipment, and in particular to a blade disc grinding and polishing station. Background Art

[0002] Blades are key core components in aircraft engines, compressors, gas turbines and other equipment. Due to the high temperature, high kinetic energy, high stability, and weight reduction requirements of the blade working environment, the blade design tends to design the blades and the disk into an integral blade disk as much as possible and manufacture them using an integral processing method, which is conducive to improving work efficiency and further enhancing reliability.

[0003] Because blisks include a variety of machining surface types, different types of grinding heads and abrasives are used accordingly. Therefore, blisk machining stations generally have a storage facility for grinding heads and abrasives for robotic grasping and use. However, after the grinding heads or abrasives in the storage facility are used up, the machine usually needs to be shut down and replaced with new ones to ensure safety. This affects machining efficiency, especially for abrasive belts used in belt sanders. Due to their large size and frequent replacement, the storage facility is limited and requires frequent replacement, significantly impacting the machining efficiency of the machining station. Utility Model Content

[0004] One purpose of the utility model is to provide a blade disc grinding and polishing station that can improve the equipment utilization rate of the blade grinding and polishing station, reduce the time occupied by personnel maintenance, and improve the processing efficiency.

[0005] Another purpose of the present invention is to save space.

[0006] Another purpose of the present invention is to improve machining accuracy and stability.

[0007] A further object of the present invention is to provide a method for meeting dry and wet grinding process scenarios.

[0008] An embodiment of the present invention provides a blade disc grinding and polishing station, comprising:

[0009] A protective room, wherein a processing space is enclosed inside the protective room, and the protective room includes a material exchange door body for connecting or closing the processing space with the outside;

[0010] An isolation door is provided in the processing space and is formed together with the portion of the protection room where the material changing door is provided to form an abrasive storage accommodating space;

[0011] A grinding and polishing mechanism is disposed in the processing space, the grinding and polishing mechanism comprising a rotating abrasive magazine disposed in the abrasive magazine accommodating space, the rotating abrasive magazine being rotatable about a vertical axis and comprising a plurality of vertical side surfaces, each of the vertical side surfaces storing abrasive for a belt sander;

[0012] The manipulator is used to assemble the abrasive to the corresponding grinding and polishing tool so as to perform corresponding processing.

[0013] Optionally, the grinding and polishing mechanism further includes a grinding head library for storing grinding heads for the spindle;

[0014] The manipulator is also used to assemble the grinding head to the corresponding grinding and polishing tool.

[0015] Optionally, the blisk grinding and polishing station also includes:

[0016] A grinding and polishing tool library, comprising a plurality of storage spaces for respectively placing various types of grinding and polishing tools and used tool assemblies, wherein the grinding and polishing tools include a spindle tool and a belt sander, and the tool assembly includes a spindle tool equipped with the grinding head and a belt sander equipped with the abrasive;

[0017] A tool quick change device, used for assembling the grinding and polishing tool to the manipulator;

[0018] The manipulator is also used to place the used tool assembly into the corresponding storage space.

[0019] Optionally, the blade disc grinding and polishing station further includes a positioner for positioning the blade disc to be processed.

[0020] Optionally, the positioner is a two-axis positioner and the manipulator is a six-axis manipulator.

[0021] Optionally, the rotating abrasive magazine and the positioner are respectively located on both sides of the manipulator in the first horizontal direction, and the grinding head magazine and the polishing tool magazine are respectively located on both sides of the manipulator in the second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction.

[0022] Optionally, a seismic-resistant base is provided on the ground of the blade disc grinding and polishing station, and the protective room, the isolation door and the grinding and polishing mechanism are all arranged on the seismic-resistant base.

[0023] Optionally, the blade disc grinding and polishing station further comprises a coolant circulation system, comprising a nozzle fixed at the manipulator, the nozzle being directed towards the machining surface of the blade disc to be machined;

[0024] The anti-seismic base is provided with a liquid storage tank for temporarily storing the coolant flowing out of the nozzle.

[0025] Optionally, the blisk grinding and polishing station also includes:

[0026] A visual inspection system, including a visual camera, is used to collect point cloud image information of the blade disk to be processed. The visual inspection system calculates the shape and position dimensions of the blade disk to be processed required for processing through dimensional analysis software to provide data support for processing;

[0027] The tool calibration and detection system is used to calibrate the TCP (tool center point) coordinates of the grinding and polishing tool held by the manipulator, and to determine whether the status of the grinding head and the abrasive after automatic replacement meets the standards.

[0028] Optionally, the blade disc grinding and polishing station also includes a dust removal device, which includes a dust removal main unit and a suction pipe. The dust removal main unit is arranged outside the protective room, and the suction pipe is arranged above the protective room, which is used to suck the grinding dust in the processing space to the dust removal main unit for post-processing and discharge.

[0029] According to the first aspect of the present invention, the blade disc grinding and polishing station is provided with a rotating abrasive magazine that can rotate around a vertical axis, and abrasives can be placed on each side of the rotating abrasive magazine. The abrasive magazine accommodating space where the rotating abrasive magazine is located is located on both sides of a material changing door body and an isolation door that can be opened and closed. Therefore, during the processing, the isolation door can be closed and the material changing door body can be opened, so that the personnel can replace the abrasive on one side of the rotating abrasive magazine at the material changing door body, thereby realizing the safe replacement of abrasives without stopping the machine, and can improve the processing efficiency of the blade grinding and polishing station.

[0030] According to the second aspect of the present invention, the rotating abrasive warehouse and the positioner are respectively located on both sides of the manipulator in the first horizontal direction, and the grinding head warehouse and the grinding and polishing tool warehouse are respectively located on both sides of the manipulator in the second horizontal direction. The reasonable distribution of each warehouse is conducive to the efficient operation of the manipulator and space saving.

[0031] Furthermore, the blade disc grinding and polishing station also includes a coolant circulation system. The nozzle of the coolant circulation system is fixed to the robot and always maintains an angle facing the processing surface of the blade disc to be processed, which can ensure the cooling effect.

[0032] Furthermore, the suction pipe can extract the processing debris in real time and pass it into the exhaust gas treatment mechanism of the dust removal host for treatment, so as to ensure the cleanliness of the processing space. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a structural diagram of a blade disc grinding and polishing station according to one embodiment of the present utility model;

[0034] Figure 2 for Figure 1 A top view of the rotating abrasive storage of the blade disc grinding and polishing station of the embodiment;

[0035] Figure 3 for Figure 1A schematic structural diagram of the rotating abrasive storage of the blade disc grinding and polishing station of the embodiment;

[0036] Figure 4 It is a structural schematic diagram of a blade disc grinding and polishing station according to another embodiment of the utility model;

[0037] Reference numerals:

[0038] 100-blade disc grinding and polishing station, 10-protection room, 101-processing space, 11-material changing door, 12-lifting door, 102-abrasive storage space, 20-rotating abrasive storage, 21-abrasive for belt machine, 30-manipulator, 40-grinding head storage, 50-grinding and polishing tool storage, 51-storage space, 60-positioner, 70-anti-seismic base, 71-liquid storage tank, 80-tool calibration and detection system, 90-dust removal device, 91-dust removal host, 92-suction pipe. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the accompanying drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0041] In addition, numerous specific details are provided in the following detailed description to better illustrate the present invention. Those skilled in the art will appreciate that the present invention can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art are not described in detail in order to highlight the main points of the present disclosure.

[0042] It should be understood that the term "and / or" as used herein simply describes an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " as used herein indicates that the related objects are in an "or" relationship.

[0043] In the embodiments of the present invention, the term "multiple" refers to two or more. The terms "first," "second," and so on, appearing in the embodiments of the present invention are for illustrative purposes only and are intended to distinguish the objects being described. They are not in any particular order and do not represent a specific limit on the number of objects in the embodiments of the present invention. They do not constitute any limitation on the embodiments of the present invention.

[0044] Figure 1 FIG. 1 is a structural diagram of a blade disk grinding and polishing station 100 according to an embodiment of the present invention. Figure 2 for Figure 1 A top view of the rotating abrasive magazine 20 of the blisk grinding and polishing station 100 according to the embodiment. Figure 3 for Figure 1 The structural diagram of the rotating abrasive storage 20 of the blade disc polishing station 100 of the embodiment. Figure 1 As shown, in one embodiment, the blade disc grinding and polishing station 100 includes a protective room 10, an isolation door and a grinding and polishing mechanism. The interior of the protective room 10 is enclosed to form a processing space 101, and the protective room 10 includes a material changing door body 11, which is used to connect or close the processing space 101 with the outside. The isolation door (not shown in the figure) is arranged in the processing space 101, and is enclosed together with the part of the protective room 10 provided with the material changing door body 11 to form an abrasive storage accommodating space 102. The grinding and polishing mechanism is arranged in the processing space 101, and the grinding and polishing mechanism includes a rotating abrasive storage 20 arranged in the abrasive storage accommodating space 102. The rotating abrasive storage 20 can rotate around a vertical axis and includes multiple vertical side surfaces, and abrasives 21 for a sanding belt machine are stored on each vertical side surface. The isolation door here can be a vertically arranged door body, or a door body with an arc or other special shape, as long as it can be adapted to the rotating abrasive storage 20 accommodating space 102, for example Figure 1 In the embodiment shown, when the rotating abrasive storehouse 20 is placed in the abrasive storehouse accommodating space 102, its inner side will partially protrude from the inner side of the protective room 10. At this time, the isolation door can be set as an arc door to adapt to the rotating abrasive storehouse 20 and the protective room 10. Here, the isolation door is preferably set as a lifting door to avoid occupying the space of the processing space 101 when the isolation door is opened. The manipulator 30 is used to assemble the abrasive to the corresponding grinding and polishing tool for corresponding processing. The manipulator 30 can grab or be connected to a grinding and polishing tool, such as a sanding machine, a rotating spindle tool or other commonly used grinding and polishing tools. Then the manipulator 30 picks up the abrasive that is compatible with the currently used grinding and polishing tool in the rotating abrasive storehouse 20 and connects it to the grinding and polishing tool, so that the manipulator 30 can carry the grinding and polishing tool to perform grinding and polishing operations.

[0045] The blade disc grinding and polishing station 100 of this embodiment is provided with a rotating abrasive magazine 20 that can rotate around a vertical axis. Abrasives can be placed on all sides of the rotating abrasive magazine 20. The abrasive magazine accommodating space 102 where the rotating abrasive magazine 20 is located is respectively provided with a material changing door body 11 and an isolation door that can be opened and closed. Therefore, during the processing, the isolation door can be closed and the material changing door body 11 can be opened, so that the personnel can replace the abrasive on one side of the rotating abrasive magazine 20 at the material changing door body 11, thereby realizing the safe replacement of abrasives without stopping the machine, and improving the processing efficiency of the blade grinding and polishing station.

[0046] In a further embodiment, Figure 1As shown, the grinding and polishing mechanism also includes a grinding head magazine 40 for storing spindle grinding heads, a grinding and polishing tool magazine 50, a tool quick changer (not shown), a positioner 60, a seismic base 70, a coolant circulation system, a visual inspection system (not shown), and a tool calibration and inspection system 80. A seismic base 70 is provided on the ground of the blisk grinding and polishing station 100, and the protective room 10, isolation door, and grinding and polishing mechanism are all mounted on the seismic base 70. The positioner 60 is used to position the blisk to be processed, and is therefore the machining center of the blisk grinding and polishing station 100. In one embodiment, the positioner 60 is a two-axis positioner, and the manipulator 30 is a six-axis manipulator. In this embodiment, the rotating abrasive magazine 20 and the positioner 60 are located on either side of the manipulator 30 in a first horizontal direction, respectively. The grinding head magazine 40 and the grinding and polishing tool magazine 50 are located on either side of the manipulator 30 in a second horizontal direction, respectively. The first horizontal direction is perpendicular to the second horizontal direction. Generally, the volume of the grinding head for the spindle is relatively small. Therefore, when a grinding head library 40 of a certain capacity is used, there is no need to frequently replace new grinding heads. Therefore, the grinding head library 40 here can adopt a fixed rectangular material library. The grinding and polishing tool library 50 includes multiple storage spaces 51 for placing various types of grinding and polishing tools and used tool assemblies respectively. In this embodiment, the grinding and polishing tools include spindle tools and sanding machines. The tool assemblies include spindle tools equipped with grinding heads and sanding machines equipped with abrasives. In other application scenarios, the number and volume of the storage spaces 51 of the grinding and polishing tool library 50 are determined according to the type of grinding and polishing tools and are not limited here. The tool quick change device is used to assemble the grinding and polishing tools to the manipulator 30. The manipulator 30 is also used to assemble the grinding heads to the corresponding grinding and polishing tools. The manipulator 30 is also used to place the used tool assemblies into the corresponding storage spaces 51. The visual inspection system includes a visual camera for detecting point cloud image information of the blisk to be machined. The visual inspection system can be mounted and fixed to the robot 30 via a tool changer. Using dimensional analysis software, the visual inspection system calculates the required geometric and positional dimensions of the blisk to be machined, providing data support for machining. This is a standard function of existing visual inspection systems and will not be discussed in detail here. Of course, the visual camera can also capture image information of the grinding head and abrasive currently in use. The visual inspection system can be placed atop the stationary grinding head magazine 40. The tool calibration and inspection system 80 is used to calibrate the coordinates of the grinding and polishing tools held by the robot 30. The tool calibration and inspection system 80 typically includes a TCP laser calibrator, a camera, and other components to calibrate the TCP coordinates of the grinding and polishing tool currently held by the robot 30. The tool calibration and inspection system 80 is also used to determine whether the grinding head and abrasive meet standards after automatic replacement. The coolant circulation system includes a nozzle fixed to the robot 30, facing the machining surface of the blisk to be machined. A liquid storage tank 71 is provided at the anti-seismic base 70 for temporarily storing the cooling liquid flowing out of the nozzle. Figure 1In the illustrated embodiment, the liquid sump 71 is a rectangular, sunken trough that covers the area of the positioner 60. In one embodiment, the coolant circulation system further includes a pumping station and a multi-stage filtration mechanism. By providing a circulation pipeline, the coolant deposited in the liquid sump 71 is filtered by the multi-stage filtration mechanism and then recirculated to the nozzle for reuse.

[0047] During machining, the blisk to be machined is first placed on the workbench of the positioner 60 for positioning and clamping. The robot 30 then uses a visual camera to capture the starting position of the blisk on the positioner 60 and autonomously calculates the deviation. Based on this deviation, the rotation axis of the positioner 60's workbench is fine-tuned and calibrated, with the calibrated position serving as the starting zero position for blisk polishing. The tool changer then assembles the corresponding polishing tool from the polishing tool library 50 onto the robot 30 according to the programmed machining program. The polishing head from the polishing head library 40 or the abrasive from the rotating abrasive library 20 is then attached to the polishing tool. At this point, the visual inspection system's visual camera captures images of the polishing tool, abrasive, or polishing head to determine whether the replacement status of the tool, abrasive, or polishing head is normal. The tool calibration and inspection system 80 then automatically detects the TCP coordinates of the polishing tool and enters them into the system. Manipulator 30, carrying a grinding and polishing tool, moves above positioner 60. A pre-set machining program is then installed. The grinding and polishing tool, carrying abrasives or a grinding head, sequentially processes the surfaces of the blisk. These surfaces include, but are not limited to, the blade basin, back face, intake and exhaust blade edges, runner faces, fillets between blades, and tip faces. Processing types include rough grinding, fine grinding, and polishing. Of course, the aforementioned machining program also includes coolant control, specifically the conditions under which coolant is required, i.e., settings for dry and wet grinding.

[0048] This embodiment, by providing a coolant circulation system, can meet both dry and wet grinding process scenarios and also achieves coolant recycling, which is environmentally friendly. Furthermore, the anti-vibration base effectively isolates external vibrations, and each mechanism within the station is mounted on the anti-vibration base, with the relative positions of each mechanism fixed, thereby improving machining accuracy and stability.

[0049] In this embodiment, the rotating abrasive warehouse 20 and the positioner 60 are respectively located on both sides of the manipulator 30 in the first horizontal direction, and the grinding head warehouse 40 and the grinding and polishing tool warehouse 50 are respectively located on both sides of the manipulator 30 in the second horizontal direction. The reasonable distribution of each warehouse is conducive to the efficient operation of the manipulator 30 and space saving.

[0050] Furthermore, the nozzle in this embodiment is fixed at the manipulator 30 and always maintains an angle facing the processing surface of the blisk to be processed, which can ensure the cooling effect.

[0051] Figure 4FIG. 1 is a structural diagram of a blade disc grinding and polishing station 100 according to another embodiment of the present invention. Figure 4 As shown, in another embodiment, the blade disc grinding and polishing station 100 also includes a dust removal device 90, and the dust removal device 90 includes a dust removal host 91 and a suction pipe 92. The dust removal host 91 is arranged on the outside of the protective room 10, and the suction pipe 92 is arranged above the protective room 10. It can be arranged at the top center or the peripheral side of the protective room 10. There is no restriction here. The suction pipe 92 is used to suck the grinding dust (including explosive grinding dust) in the processing space to the dust removal host 91 for post-processing and discharge.

[0052] The suction pipe 92 can extract the processing debris in real time and pass it into the exhaust gas treatment mechanism of the dust removal host 91 for treatment, so as to ensure the cleanliness of the processing space 101.

[0053] In a further embodiment, a lifting door body 12 is provided at a position corresponding to the protection room 10 and the grinding head warehouse 40. By opening the lifting door body 12, personnel can conveniently replace the grinding head. The lifting door body 12 can be a rolling door.

[0054] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A blade disc grinding and polishing station, characterized in that: include: A protective room, wherein a processing space is enclosed inside the protective room, and the protective room includes a material exchange door body for connecting or closing the processing space with the outside; An isolation door is provided in the processing space and is formed together with the portion of the protection room where the material changing door is provided to form an abrasive storage accommodating space; A grinding and polishing mechanism is disposed in the processing space, the grinding and polishing mechanism comprising a rotating abrasive magazine disposed in the abrasive magazine accommodating space, the rotating abrasive magazine being rotatable about a vertical axis and comprising a plurality of vertical side surfaces, each of the vertical side surfaces storing abrasive for a belt sander; The manipulator is used to assemble the abrasive to the corresponding grinding and polishing tool so as to perform corresponding processing.

2. The blade disc grinding and polishing station according to claim 1, characterized in that: The grinding and polishing mechanism also includes a grinding head library for storing grinding heads for the spindle; The manipulator is also used to assemble the grinding head to the corresponding grinding and polishing tool.

3. The blade disc grinding and polishing station according to claim 2, characterized in that: Also includes: A grinding and polishing tool library, comprising a plurality of storage spaces for respectively placing various types of grinding and polishing tools and used tool assemblies, wherein the grinding and polishing tools include a spindle tool and a belt sander, and the tool assembly includes a spindle tool equipped with the grinding head and a belt sander equipped with the abrasive; A tool quick change device, used for assembling the grinding and polishing tool to the manipulator; The manipulator is also used to place the used tool assembly into the corresponding storage space.

4. The blade disc grinding and polishing station according to claim 3, characterized in that: It also includes a positioner for positioning the blade disk to be processed.

5. The blade disc grinding and polishing station according to claim 4, characterized in that: The positioner is a two-axis positioner, and the manipulator is a six-axis manipulator.

6. The blade disc grinding and polishing station according to claim 4, characterized in that: The rotating abrasive magazine and the positioner are respectively located on both sides of the manipulator in the first horizontal direction, and the grinding head magazine and the polishing tool magazine are respectively located on both sides of the manipulator in the second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction.

7. The blade disc grinding and polishing station according to any one of claims 2 to 6, characterized in that: An anti-seismic base is provided on the ground of the blade disc grinding and polishing station, and the protective room, the isolation door and the grinding and polishing mechanism are all arranged on the anti-seismic base.

8. The blade disc grinding and polishing station according to claim 7, characterized in that: It also includes a coolant circulation system, including a nozzle fixed to the manipulator, the nozzle facing the processing surface of the blade disk to be processed; The anti-seismic base is provided with a liquid storage tank for temporarily storing the coolant flowing out of the nozzle.

9. The blade disc grinding and polishing station according to claim 8, characterized in that: Also includes: A visual inspection system, including a visual camera, is used to collect point cloud image information of the blade disk to be processed. The visual inspection system calculates the shape and position dimensions of the blade disk to be processed required for processing through dimensional analysis software to provide data support for processing; The tool calibration and detection system is used to calibrate the TCP coordinates of the grinding and polishing tools held by the manipulator, and to determine whether the status of the grinding head and the abrasive after automatic replacement meets the standards.

10. The blade disc grinding and polishing station according to claim 9, characterized in that: It also includes a dust removal device, which includes a dust removal main unit and a suction pipe. The dust removal main unit is arranged outside the protection room, and the suction pipe is arranged above the protection room, which is used to suck the grinding dust in the processing space to the dust removal main unit for post-processing and discharge.

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