Machining device for rotor impeller groove

Abstract

The utility model provides a processing device for a rotor impeller groove, which relates to the technical field of processing systems and comprises a fixing seat, a first connecting piece and a second connecting piece which are oppositely arranged, a rotor is accommodated between the first connecting piece and the second connecting piece, and the first connecting piece and the second connecting piece are respectively connected with two ends of the rotor in the axial direction. The first connecting piece and / or the second connecting piece can rotate synchronously with the rotor, and the rotor is provided with a plurality of open slots which are arranged at intervals in the axial direction; the machining seat is provided with a cutter, and the cutter is used for making contact with the groove wall of the open groove so as to machine the open groove to form an impeller groove; and the monitoring assembly comprises a first monitoring piece and a second monitoring piece, the first monitoring piece is used for monitoring the contact position of the cutter and the groove wall, and the second monitoring piece is used for monitoring rotation of the first connecting piece and / or the second connecting piece. According to the embodiment of the utility model, the machining quality of the rotor impeller groove can be improved.

Description

Technical Field

[0001] This utility model relates to the field of processing system technology, and more specifically, to a processing device for rotor impeller grooves. Background Technology

[0002] The conventional island low-pressure rotor is an important component of a nuclear power plant. In order to meet the component assembly requirements of a nuclear power plant, it is usually necessary to process the open slots of the rotor to form impeller slots. During the processing, the rotor as a whole is placed on a fixed base, and the rotor and the connection between the fixed base and the rotor are driven to rotate synchronously by a drive mechanism. The slot walls of the open slots are processed by a cutting tool to form impeller slots.

[0003] Because the impeller groove profile is relatively complex and the opening groove width is small, there will be some blind spots in the structure during the machining process. Operators cannot directly observe with the naked eye, so they cannot know the machining status of the tool. At the same time, operators cannot directly observe the connection between the tail of the rotor and the connecting part with the naked eye, so they cannot know whether the connecting part rotates synchronously with the rotor. Due to the existence of the above two situations, the machining quality of the impeller groove will be reduced. Utility Model Content

[0004] The problem this invention addresses is how to improve the machining quality of rotor impeller grooves.

[0005] To solve the above problems, this utility model provides a machining device for rotor impeller grooves.

[0006] This utility model provides a machining device for rotor impeller grooves, comprising: a fixed base having a first connecting member and a second connecting member disposed opposite to each other, the first connecting member and the second connecting member being used to accommodate a rotor, the first connecting member and the second connecting member being respectively connected to the two ends of the rotor in the axial direction, and the first connecting member and / or the second connecting member being able to rotate synchronously with the rotor, the rotor having a plurality of open grooves arranged at intervals along the axial direction; a machining base having a cutting tool on the machining base, the cutting tool being used to contact the groove wall of the open groove to machine the open groove to form an impeller groove; and a monitoring component including a first monitoring element and a second monitoring element, the first monitoring element being used to monitor the contact point between the cutting tool and the groove wall, and the second monitoring element being used to monitor the rotation of the first connecting member and / or the second connecting member.

[0007] Optionally, the monitoring component further includes: a first mounting bracket disposed on the processing base, the first mounting bracket being used to connect with the first monitoring component; and a second mounting bracket disposed on the fixed base, the second mounting bracket being used to connect with the second monitoring component.

[0008] Optionally, the first mounting bracket includes a mounting base and a bracket. The mounting base is disposed on the processing base. The bracket includes a first connecting segment and a second connecting segment connected in sequence. One end of the first connecting segment is movably connected to the bracket. The other end of the first connecting segment is hinged to one end of the second connecting segment. The other end of the second connecting segment is used to connect to the first monitoring component and the second monitoring component.

[0009] Optionally, the mounting base is magnetically connected to the processing base.

[0010] Optionally, the machining base is provided with a clamping member, the clamping member having a first mounting part and a second mounting part, the machining base having multiple mounting points, the first mounting part being detachably connected to any mounting point of the machining base, and the second mounting part being used to clamp and fix the tool.

[0011] Optionally, the clamping member includes: a body, with a first mounting portion and a second mounting portion respectively provided on opposite sides of the body, the second mounting portion being a mounting groove, the first mounting portion being a mounting protrusion, the mounting groove being used to accommodate at least part of the cutting tool, and the mounting protrusion being used to be detachably connected to the machining seat.

[0012] Optionally, the machining base is provided with an operation panel, which is used to input commands to control the movement of the tool. The monitoring component further includes a display screen, which is disposed on the operation panel. The display screen is communicatively connected to the first monitoring component and the second monitoring component and is used to display the monitoring screens of the first monitoring component and the second monitoring component.

[0013] Optionally, the processing device further includes: a reflector, which is circumferentially arranged around the outer peripheral wall of the first connector and / or the second connector along the rotor, the reflector being used to rotate synchronously with the first connector and / or the second connector, and the second monitoring device being used to monitor the rotation of the reflector.

[0014] Optionally, the first monitoring device includes an endoscope, and the second monitoring device includes a wireless camera.

[0015] Optionally, the opening groove includes a allowance layer, a first rounded corner layer, a second rounded corner layer, and a finishing layer, and the cutting tool sequentially processes the allowance layer, the first rounded corner layer, the second rounded corner layer, and the finishing layer to form the impeller groove.

[0016] The beneficial effects of the rotor impeller groove processing device of this utility model are as follows: By connecting the first and second connecting parts to the two ends of the rotor in the axial direction, the rotor can be fixed, and the first and / or second connecting parts can be rotated synchronously with the rotor, ensuring high-precision positioning of the rotor during processing and avoiding groove shape deviations caused by vibration or offset. Simultaneously, the first monitoring component monitors the contact position between the tool and the groove wall in real time, directly monitoring changes in the groove wall structure during processing, allowing operators to promptly report abnormal conditions. The second monitoring component monitors the rotational dynamics of the first and / or second connecting parts, enabling operators to promptly detect speed fluctuations or eccentricity issues in the first and / or second connecting parts. Based on the dual monitoring mechanism of the first and second monitoring components, the processing quality of the rotor impeller groove can be improved. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the rotor impeller groove processing device provided in this embodiment of the utility model;

[0018] Figure 2 A partial structural schematic diagram of the rotor impeller groove processing device provided in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the clamping member provided in an embodiment of the present utility model;

[0020] Figure 4 This is a structural schematic diagram of the clamping member provided in an embodiment of the present utility model from another perspective.

[0021] Explanation of reference numerals in the attached figures:

[0022] Fixing base 10, first connecting member 11, second connecting member 12

[0023] Rotor 20, Open slot 21

[0024] Machining base 30, cutting tool 31

[0025] Monitoring component 40, first monitoring element 41, second monitoring element 42, mounting base 43, bracket 44, first connecting section 441, second connecting section 442.

[0026] Clamping component 50, body 51, mounting slot 52, mounting protrusion 53

[0027] Operation panel 60, display screen 70, reflector 80, length direction X of processing base, width direction Y of processing base. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0029] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0030] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0031] like Figures 1 to 4 As shown, this utility model provides a machining device for rotor impeller grooves, including: a fixed base 10, having a first connecting member 11 and a second connecting member 12 arranged opposite to each other, the first connecting member 11 and the second connecting member 12 being used to accommodate a rotor 20, the first connecting member 11 and the second connecting member 12 being respectively connected to the two ends of the rotor 20 in the axial direction, and the first connecting member 11 and / or the second connecting member 12 being able to rotate synchronously with the rotor 20, the rotor 20 having a plurality of open grooves 21 arranged at intervals along the axial direction; a machining base 30, on which a cutting tool 31 is provided, the cutting tool 31 being used to contact the groove wall of the open groove 21 to machine the open groove 21 to form an impeller groove; a monitoring component 40, including a first monitoring component 41 and a second monitoring component 42, the first monitoring component 41 being used to monitor the contact point between the cutting tool 31 and the groove wall, and the second monitoring component 42 being used to monitor the rotation of the first connecting member 11 and / or the second connecting member 12.

[0032] In this embodiment, the fixed base 10 is a lathe, and at least one of the first connecting member 11 and the second connecting member 12 is a conical tip. The conical tip is a component on the lathe used to position and support the rotation axis of the workpiece. It is usually installed on the spindle or tailstock of the lathe so that it can cooperate with the center hole of the rotor 20 so that the conical tip can rotate synchronously with the rotor 20 to ensure that the rotor 20 remains stable when rotating at high speed.

[0033] Furthermore, in this embodiment, the cutting tool 31 uses a DMMM1506 12-PR insert, which can improve machining efficiency by 1.5 times compared to the DCMT11T3 12-PM insert.

[0034] The beneficial effects of the rotor impeller groove processing device of this utility model are as follows: The first connecting member 11 and the second connecting member 12 are respectively connected to the two ends of the rotor 20 in the axial direction, thus fixing the rotor 20 and achieving synchronous rotation of the first connecting member 11 and / or the second connecting member 12 with the rotor 20. This ensures that the rotor 20 maintains high-precision positioning during processing and avoids groove shape deviations caused by vibration or offset. Simultaneously, the first monitoring member 41 monitors the contact position between the tool 31 and the groove wall in real time, directly monitoring changes in the groove wall structure during processing, allowing operators to promptly report abnormal conditions. The second monitoring member 42 monitors the rotational dynamics of the first connecting member 11 and / or the second connecting member 12, enabling operators to promptly detect problems such as speed fluctuations or eccentricity in the first connecting member 11 and / or the second connecting member 12. Based on the dual monitoring mechanism of the first and second monitoring members 41, the processing quality of the rotor impeller groove can be improved.

[0035] like Figure 1 and Figure 2 As shown, optionally, the monitoring component further includes: the monitoring component 40 also includes: a first mounting bracket, disposed on the machining base 30, for connecting with the first monitoring component 41; and a second mounting bracket, disposed on the fixed base 10, for connecting with the second monitoring component 42. By setting the above structure, the first monitoring component 41 and the second monitoring component 42 can be flexibly adjusted in position according to machining requirements. For openings 21 of different sizes, the monitoring angle can be quickly adjusted to ensure accurate monitoring of the contact point between the tool 31 and the groove wall, and the rotation state of the connecting parts, thus improving the adaptability of the monitoring component 40 to diverse machining scenarios. Furthermore, the movable connection between the bracket 44 and the mounting base 43 facilitates the disassembly and installation of components, thereby improving the efficiency of disassembly and installation between components.

[0036] In this embodiment, the connection between the bracket 44 and the mounting base 43 is set to a hinge, which can reduce the space occupied by the monitoring component 40 on the machining base 30, avoid interference with the tool 31 or other structures, and at the same time meet the angle adjustment requirements as much as possible.

[0037] Of course, in other embodiments, the connection between the bracket 44 and the processing base 30 can also be set as a universal connection. The specific setting should be selected according to the usage environment of the device.

[0038] like Figure 1 and Figure 2 As shown, optionally, the first mounting bracket includes a mounting base 43 and a bracket 44. The mounting base 43 is disposed on the processing base 30. The bracket 44 includes a first connecting segment 441 and a second connecting segment 442 connected in sequence. One end of the first connecting segment 441 is movably connected to the bracket 44, and the other end of the first connecting segment 441 is hinged to one end of the second connecting segment 442. The other end of the second connecting segment 442 is used to connect to the first monitoring component 41 and the second monitoring component 42. By setting the above structure, the position of the first monitoring component 41 and / or the second monitoring component 42 can be adjusted in multiple dimensions to quickly adjust to the monitoring angle corresponding to different slots, thus improving the adjustment efficiency of the first monitoring component 41 and / or the second monitoring component 42.

[0039] In this embodiment, the overall extension length when the first connecting segment 441 and the second connecting segment 442 are aligned to form a straight line is 700 mm.

[0040] Of course, the overall extension length when the first connecting segment 441 and the second connecting segment 442 are adjusted to be on the same straight line can also be set to a value such as 500mm or 800mm. The specific setting should be selected according to the usage environment of the device.

[0041] In other embodiments, a servo motor or hydraulic drive unit can be integrated at the connection between the first connecting segment 441 and the second connecting segment, and the monitoring angle can be automatically adjusted through program control. This achieves automated monitoring, thereby further improving monitoring efficiency and accuracy.

[0042] like Figure 1 and Figure 2As shown, optionally, the mounting base 43 and the machining base 30 are magnetically connected. This connection method enables quick installation and removal of the mounting base 43 and the machining base 30, thereby improving their assembly and disassembly efficiency. During installation, simply bringing the mounting base 43 close to the machining base 30 is sufficient for instant fixation; during disassembly, only applying force to the mounting base 43 in the direction away from the machining base 30 is required. This not only saves assembly and disassembly time but also facilitates adjustment of the mounting base 43's position to meet the needs of different processing environments.

[0043] In other embodiments, the mounting base 43 and the machining base 30 may also be configured as bolted or welded connections, etc.

[0044] like Figure 3 and Figure 4 As shown, optionally, the machining base 30 is provided with a clamping member 50, which has a first mounting part and a second mounting part. The machining base 30 has multiple mounting points. The first mounting part is used for detachable connection with any mounting point of the machining base 30, and the second mounting part is used for clamping and fixing the tool 31. The length and width directions of the machining base 30 are located in the same plane, and one of the length and width directions of the machining base 30 is parallel to the axial direction of the rotor 20. By setting the above structure, when the first mounting part is connected to the machining base 30 along the length direction, the radial direction of the opening slot 21 can be machined; when the first mounting part is connected to the machining base 30 along the width direction, the axial direction of the opening slot 21 can be machined. Furthermore, since one of the length and width directions of the machining base 30 is parallel to the axial direction of the rotor 20, machining errors can be reduced.

[0045] In this embodiment, the length and width of the processing base 30 are horizontal.

[0046] like Figure 3 and Figure 4 As shown, optionally, in other embodiments, the length and width directions of the processing base 30 can also be set to form an angle with the axial direction of the rotor 20, such as 30° or 50°, as long as the processing requirements of the device can be met. In this embodiment, the length direction of the processing base 30 is X, and the width direction of the processing base 30 is Y.

[0047] like Figure 3 and Figure 4As shown, optionally, the clamping member 50 includes: a body 51, with a first mounting portion and a second mounting portion respectively provided on opposite sides of the body 51. The second mounting portion is a mounting groove 52, and the first mounting portion is a mounting protrusion 53. The mounting groove 52 is used to accommodate at least a portion of the cutting tool 31, and the mounting protrusion 53 is used for detachable connection with the machining base 30. In this embodiment, the machining base is provided with a slot structure. This configuration allows the mounting protrusion 53 to cooperate with the slot structure of the machining base 30 to form a constraint, ensuring that the clamping member 50 will not shift during machining, which is beneficial to ensuring the stability of the machining process. At the same time, the mounting groove 52 can also cooperate with the cutting tool 31 to form a constraint, ensuring the dual positioning of the cutting tool 31 in two directions, which is beneficial to ensuring the stability of the machining process.

[0048] In addition, the insertion design of the mounting protrusion 53 and the slot of the machining base 30 can also improve the efficiency of the mounting and dismounting of the clamping parts to meet the adjustment needs of the machining process.

[0049] In this embodiment, the tool 31 is installed along the extension direction of the mounting groove 52, and the extension direction of the installed tool 31 is consistent with the extension direction of the mounting groove 52.

[0050] In this embodiment, the body 51 has a length of 280mm and a width of 102mm. Optionally, the dimensions of the body 51 can also be set to other values, such as a length of 200mm and a width of 70mm.

[0051] Meanwhile, in this embodiment, the mounting groove 52 and the mounting protrusion 53 form an L-shaped structure, which not only facilitates the assembly and disassembly of the clamping member 50 and the processing seat 30, but also reduces the overall volume of the clamping member 50, making it easier to store the clamping member 50.

[0052] Optionally, the machining base 30 is equipped with an operation panel 60, which is used to input commands to control the movement of the tool 31. The monitoring component 40 also includes a display screen 70, which is mounted on the operation panel 60. The display screen 70 is communicatively connected to the first monitoring component 41 and the second monitoring component 42, and is used to display the monitoring images of the first monitoring component 41 and the second monitoring component 42. By setting up the above structure, the operator can use the operation panel 60 to program the path of the tool 31 and adjust the machining parameters (such as feed rate and rotational speed), and make real-time adjustments in conjunction with the monitoring images, thus improving the accuracy and stability of the impeller groove machining.

[0053] In this embodiment, the display screen 70 and the operation panel 60 can be magnetically connected. Of course, in other embodiments, the connection method can also be a snap-fit ​​or the like.

[0054] like Figure 1As shown, optionally, the processing device further includes: a reflector 80, which is circumferentially arranged on the outer peripheral wall of the first connecting member 11 and / or the second connecting member 12 along the circumference of the rotor 20. The reflector 80 is used to rotate synchronously with the first connecting member 11 and / or the second connecting member 12, and the second monitoring member 42 is used to monitor the rotation of the reflector 80. By setting the above structure, when the rotor 20 rotates, the reflector 80 will also rotate simultaneously. Since the reflector 80 can increase the reflectivity of light, the second monitoring member 42 can more clearly see whether the first connecting member 11 and / or the second connecting member 12 is rotating or its rotation rate, thus improving the monitoring accuracy of the second monitoring member 42.

[0055] In this embodiment, the reflector 80 is partially arranged around the outer peripheral wall of the rotor 20. Of course, the reflector 80 can also be arranged around the outer peripheral wall of the rotor 20 in a complete circle. The specific arrangement should be selected according to the processing environment.

[0056] Optionally, the first monitoring device 41 includes an endoscope, and the second monitoring device 42 includes a wireless camera. In this embodiment, the first monitoring device 41 is fixed by a bracket 44, while the second monitoring device 42 is fixed by a magnetic mount.

[0057] In other embodiments, the first monitoring device 41 and the second monitoring device 42 may also be high-speed cameras.

[0058] Optionally, the opening groove 21 includes a reserve layer, a first rounded corner layer, a second rounded corner layer, and a slightly rounded surface layer. The tool 31 sequentially processes the reserve layer, the first rounded corner layer, the second rounded corner layer, and the slightly rounded surface layer to form an impeller groove.

[0059] In this embodiment, when processing the allowance layer, the following program needs to be entered on the operation panel 60:

[0060] N100 G00G54G64G90G95X0Z-3~

[0061] N200 R1=0 R2=94 R3=8 R4=465 R5=9~

[0062] N300 G01Z0F15~

[0063] N400 AA:G01X=R1~

[0064] N500 G01X=-R3 Z=R5~

[0065] N600 X=-R4+R5~

[0066] N700 G00X=R1-R5~

[0067] N800 R1=R1-9~

[0068] N900 R4=R4-9~

[0069] N1000 R5 = R5 + 9~

[0070] N1100 R3=R3+8~

[0071] N1200 IF R3<=R2 GOTOB AA~

[0072] N1300 M30

[0073] In this embodiment, the second rounded corner layer and the slightly rough surface layer are processed using large pointed tools with lengths of 80mm and 120mm.

[0074] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A device for machining a rotor blade slot, characterized in that include: The fixed base (10) has a first connector (11) and a second connector (12) disposed opposite to each other, the first connector (11) and the second connector (12) are used to accommodate a rotor (20), the first connector (11) and the second connector (12) are respectively connected to the two ends of the rotor (20) in the axial direction, and the first connector (11) and / or the second connector (12) can rotate synchronously with the rotor (20), the rotor (20) has a plurality of opening slots (21) arranged at intervals along the axial direction; A machining base (30) is provided with a cutting tool (31), which is used to contact the groove wall of the opening groove (21) to process the opening groove (21) to form an impeller groove; The monitoring component (40) includes a first monitoring element (41) and a second monitoring element (42). The first monitoring element (41) is used to monitor the contact point between the cutting tool (31) and the groove wall, and the second monitoring element (42) is used to monitor the rotation of the first connecting member (11) and / or the second connecting member (12).

2. The apparatus of claim 1 wherein, The monitoring component (40) also includes: A first mounting bracket is disposed on the processing base (30), and the first mounting bracket is used to connect with the first monitoring component (41); The second mounting bracket is disposed on the fixed base (10) and is used to connect with the second monitoring component (42).

3. The apparatus of claim 2 wherein, The first mounting bracket includes a mounting base (43) and a bracket (44). The mounting base (43) is disposed on the processing base (30). The bracket (44) includes a first connecting segment (441) and a second connecting segment (442) connected in sequence. One end of the first connecting segment (441) is movably connected to the bracket (44), and the other end of the first connecting segment (441) is hinged to one end of the second connecting segment (442). The other end of the second connecting segment (442) is used to connect to the first monitoring component (41).

4. The rotor impeller groove processing apparatus according to claim 3, characterized in that, The mounting base (43) is magnetically connected to the processing base (30).

5. The apparatus of any one of claims 1-4, wherein, The machining base (30) is provided with a clamping member (50), the clamping member (50) has a first mounting part and a second mounting part, the machining base (30) has multiple mounting points, the first mounting part is used to detachably connect with any mounting point of the machining base (30), and the second mounting part is used to clamp and fix the tool (31).

6. The apparatus of claim 5 wherein, The clamping member (50) includes: The body (51) has a first mounting part and a second mounting part on opposite sides, the second mounting part is a mounting groove (52), the first mounting part is a mounting protrusion (53), the mounting groove (52) is used to accommodate at least part of the cutting tool (31), and the mounting protrusion (53) is used to detachably connect with the machining seat (30).

7. The apparatus of any one of claims 1-4, wherein, The machining base (30) is provided with an operation panel (60), which is used to input commands to control the movement of the cutting tool (31); the monitoring component (40) further includes: A display screen (70) is disposed on the operation panel (60). The display screen (70) is communicatively connected to the first monitoring device (41) and the second monitoring device (42) and is used to display the monitoring screens of the first monitoring device (41) and the second monitoring device (42).

8. The apparatus of any one of claims 1-4, wherein, The processing apparatus further includes: A reflector (80) is arranged around the outer peripheral wall of the first connector (11) and / or the second connector (12) along the circumference of the rotor (20). The reflector (80) is used to rotate synchronously with the first connector (11) and / or the second connector (12). The second monitoring element (42) is used to monitor the rotation of the reflector (80).

9. The apparatus of any one of claims 1-4, wherein, The first monitoring device (41) includes an endoscope, and the second monitoring device (42) includes a wireless camera.

10. The apparatus of any one of claims 1-4, wherein, The opening groove (21) includes a reserve layer, a first rounded corner layer, a second rounded corner layer, and a slightly rounded surface layer. The cutting tool (31) sequentially processes the reserve layer, the first rounded corner layer, the second rounded corner layer, and the slightly rounded surface layer to form the impeller groove.

Images