Composite tool for light-weight milling machine machining of fan main shaft

Abstract

The utility model discloses a composite tool for light-weight milling machine machining of a fan main shaft, and belongs to the technical field of fan main shaft machining equipment. According to the technical scheme, the composite tool is characterized by comprising a workbench, a positioning support, a first support and a second support, and the first support and the second support are arranged at the two ends of the workbench correspondingly; the positioning support is arranged on the side, away from the second support, of the first support. The first support is movably connected with a first switch device, the first switch device and the first support define a first containing space for containing a main shaft, the first switch device is connected with a first positioning piece, and the first support is in threaded connection with a plurality of first supporting heads arranged in the first containing space. The second support is movably connected with a second switch device, the second switch device and the second support define a second containing space for containing the main shaft, the second switch device is connected with a second positioning piece, the second support is in threaded connection with a plurality of second supporting heads arranged in the second containing space, and the effect of improving the machining efficiency and quality of the fan main shaft is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of fan main shaft processing equipment, in particular to a composite tool for lightweight milling machine processing of a fan main shaft. BACKGROUND

[0002] At present, the fan main shaft is one of the core components of a wind turbine generator set, and the manufacturing quality and precision of the fan main shaft directly affect the performance and reliability of the entire wind turbine generator set. In order to improve the processing efficiency and quality of the fan main shaft, a milling machine is used to process the surface of the fan main shaft, and a special tool clamp is usually required to fix and position the main shaft. These tool clamps need to ensure the stability and precision of the main shaft.

[0003] However, in actual application, the existing tool clamps still have obvious defects in ensuring the stability and flexibility of the main shaft. The existing tool clamps have limitations in adapting to main shafts of different sizes and shapes, and often need to be frequently replaced, increasing production cost and time. Therefore, how to design a tool clamp that can effectively fix and position the main shaft while having good stability and flexibility has become a technical problem to be solved. CONTENT OF THE INVENTION

[0004] In order to improve the processing efficiency and quality of the fan main shaft, the utility model provides a composite tool for lightweight milling machine processing of a fan main shaft.

[0005] The composite tool for lightweight milling machine processing of a fan main shaft provided by the utility model adopts the following technical scheme:

[0006] A composite tool for lightweight milling machine processing of a fan main shaft, comprising a workbench, the workbench is connected with a positioning support, a first support and a second support, the first support and the second support are respectively arranged at two ends of the workbench, the positioning support is arranged on the side of the first support away from the second support and is used for limiting the main shaft flange; the first support is movably connected with a first switch device, the first switch device and the first support enclose a first placing space for placing the main shaft, the first switch device is connected with a first positioning piece for limiting the main shaft from the top of the main shaft, the first support is threadedly connected with a plurality of first support heads, the plurality of first support heads are arranged in the first placing space and are distributed at intervals in the circumferential direction of the main shaft and are used for supporting the bottom of the main shaft; the second support is movably connected with a second switch device, the second switch device and the second support enclose a second placing space for placing the main shaft, the second switch device is connected with a second positioning piece for limiting the main shaft from the top of the main shaft, and the second support is threadedly connected with a plurality of second support heads, the plurality of second support heads are arranged in the second placing space and are distributed at intervals in the circumferential direction of the main shaft and are used for supporting the bottom of the main shaft.

[0007] By adopting the technical scheme, when in use, the first switch device and the second switch device are opened, the main shaft is lifted and placed on the first support and the second support, the positioning support limits the main shaft flange, the longitudinal position of the main shaft is ensured to be accurate, and the first support head and the second support head support the main shaft. Then the first switch device and the second switch device are closed, the first switch device and the second switch device enclose the first support and the second support to form the first placing space and the second placing space, multi-point support of the main shaft is formed, and the stability of the main shaft in the machining process is ensured. The first positioning member and the second positioning member are adjusted, the first positioning member and the second positioning member limit the main shaft from the top, and the possibility of movement of the main shaft in the vertical direction is reduced. Meanwhile, the plurality of first support heads and second support heads are distributed in the circumferential direction of the main shaft, uniformly support the bottom of the main shaft, and the first support head and the second support head can be finely adjusted, further improving the stability of the main shaft and reducing vibration and deformation. Therefore, the first support, the first support head, the second support, the second support head, the first positioning member and the second positioning member cooperate with each other to realize stable support and accurate positioning of the main shaft of the fan, ensure the position of the main shaft fixed in the lightweight milling machine machining process, and reduce the possibility of machining error caused by shaking or deviation of the main shaft.

[0008] Preferably, the end faces of the first support head and the second support head are provided with a plurality of first sharp ends, and the first sharp ends are inserted into the main shaft.

[0009] By adopting the technical scheme, the first sharp ends provided on the first support head and the second support head can effectively increase the friction between the support points and the main shaft, ensure the stability of the main shaft during machining, avoid machining errors caused by sliding, and improve machining precision and quality. The first sharp ends are inserted into the surface of the main shaft, and the inserted position will be machined on the lathe later, so it does not affect the quality of the main shaft, and can further enhance the reliability of the support.

[0010] Preferably, the end faces of the first positioning member and the second positioning member close to the main shaft are provided with a plurality of second sharp ends, and the second sharp ends are inserted into the main shaft.

[0011] By adopting the technical scheme, the second sharp ends are inserted into the surface of the main shaft, and the inserted position will be machined on the lathe later, so it does not affect the quality of the main shaft, and effectively enhances the positioning stability of the main shaft, reduces the possibility of movement or deviation of the main shaft during machining, improves machining precision and reliability, and ensures the overall quality of the main shaft.

[0012] Preferably, the first switch device comprises a first connecting frame, a first rotating shaft and a first rotating frame, the first connecting frame is connected with the first support, the first end of the first rotating shaft is fixedly connected with the first connecting frame, the second end is rotatably connected with the first rotating frame, when the first rotating frame is above the first support, the first switch device and the first support form a first placing space, and the first positioning member is detachably connected with the first rotating frame.

[0013] By adopting the above technical scheme, the structure design of the first switch device makes the first rotating frame open and close flexibly, thereby facilitating the placing and taking out of the main shaft. When the first rotating frame is above the first support, the first switch device and the first support form a stable first placing space for placing the main shaft. Meanwhile, the detachable connection between the first positioning member and the first rotating frame enables the first adjusting positioning member to adapt to main shafts of different specifications, thereby improving the adaptability and flexibility of the entire composite tool.

[0014] Preferably, the first support is connected with a first fixing frame, one end of the first rotating frame away from the first rotating shaft is connected with a first locking device, the first locking device is connected with the first fixing frame, and is used for fixing the first rotating frame and the first fixing frame.

[0015] By adopting the above technical scheme, the first locking device realizes the stable fixing of the first rotating frame and the first fixing frame, ensures the stability of the first rotating frame in the fixed position, reduces the possibility of loosening caused by vibration or impact during machining, and improves the machining precision and safety.

[0016] Preferably, the first locking device comprises a first containing groove, a first locking groove, a first communication groove, a first limiting rod, a first locking rod and a first nut, the first containing groove is arranged on the first rotating frame, the first locking groove is arranged on the first fixing frame, the first communication groove communicates the first containing groove and the first locking groove, and the side wall of the first communication groove penetrates the side wall of the same side of the first rotating frame and the first fixing frame; the first limiting rod is clamped in the first containing groove, the first locking rod is arranged in the first communication groove, one end of the first locking rod is connected with the first limiting rod, the other end extends into the first locking groove, the first nut is arranged in the first locking groove and is threadedly connected with the first locking rod, and when the first nut abuts against the first fixing frame, the first rotating frame and the first fixing frame are fixed.

[0017] By adopting the technical scheme, the first locking device can effectively fix the first rotating frame and the first fixed frame, and ensure the stability of the first rotating frame during machining. Specifically, the design of the first containing groove, the first locking groove and the first communication groove enables the first limiting rod to be removed or placed in the first containing groove, and the first locking rod to be removed or placed in the first communication groove. The first limiting rod is clamped in the first containing groove, and the first locking rod is fixed with the first fixed frame through the first nut, thereby realizing the close fixing of the first rotating frame and the first fixed frame, reducing the possibility of loosening caused by vibration or external force, and improving the reliability and safety of the entire composite tool.

[0018] Preferably, the second switch device comprises a second connecting frame, a second rotating shaft and a second rotating frame, the second connecting frame is connected with the second support, the first end of the second rotating shaft is fixedly connected with the second connecting frame, and the second end is rotatably connected with the second rotating frame, when the second rotating frame is located above the second support, the second switch device and the second support form a second placing space, and the second positioning member is detachably connected with the second rotating frame.

[0019] By adopting the technical scheme, the structure design of the second switch device enables the second rotating frame to rotate around the second rotating shaft, thereby conveniently opening or closing the second placing space, and facilitating the placing and taking out of the main shaft. At the same time, the second placing space formed by the second rotating frame and the second support can effectively fix the main shaft, reducing the possibility of movement of the main shaft during machining. In addition, the detachable connection between the second positioning member and the second rotating frame further improves the flexibility and convenience of operation.

[0020] Preferably, the bottom of the first rotating frame is higher than the top of the second rotating frame.

[0021] By adopting the technical scheme, this design enables the operator to more conveniently open or close the first rotating frame and the second rotating frame simultaneously during installation and disassembly, and they will not affect each other, reducing the inconvenience caused by height limitation and improving work efficiency.

[0022] Preferably, the second support is connected with a second fixed frame, one end of the second rotating frame away from the second rotating shaft is connected with a second locking device, the second locking device is connected with the second fixed frame, and is used for fixing the second rotating frame and the second fixed frame.

[0023] By adopting the technical scheme, the second locking device realizes the firm fixing of the second rotating frame and the second fixed frame, which ensures that the second rotating frame can be stably kept at the required position during machining, improves the machining precision and safety. At the same time, the design of the second locking device makes the operation more convenient, and improves the work efficiency.

[0024] Preferably, the first support is connected with a jack, and the jack is arranged in the second placing space and used for adjusting the levelness of the main shaft.

[0025] By using the above technical scheme, the jack can adjust the levelness of the main shaft with different specifications and diameters, and the axis of the main shaft can be kept on the horizontal plane.

[0026] In conclusion, the utility model has the following beneficial effects:

[0027] In use, the first switch device and the second switch device are opened, the main shaft is lifted and placed on the first support and the second support, the positioning support limits the main shaft flange, the longitudinal position of the main shaft is ensured to be accurate, and the first support head and the second support head support the main shaft. Then the first switch device and the second switch device are closed, the first switch device and the first support enclose the first placing space, the second switch device and the second support enclose the second placing space, and the multi-point support of the main shaft is formed, so that the stability of the main shaft in the machining process is ensured. The first positioning piece and the second positioning piece are adjusted, the first positioning piece and the second positioning piece limit the main shaft from the top, and the possibility of the movement of the main shaft in the vertical direction is reduced. Meanwhile, the first support heads and the second support heads are distributed on the circumference of the main shaft, uniformly support the bottom of the main shaft, and the first support heads and the second support heads can be finely adjusted, so that the stability of the main shaft is further improved, and the vibration and deformation are reduced. Therefore, the first support, the first support head, the second support, the second support head, the first positioning piece and the second positioning piece cooperate with each other, can realize the stable support and accurate positioning of the fan main shaft, ensure the position of the main shaft fixed in the lightweight milling machine machining process, and reduce the possibility of machining errors caused by the shaking or deviation of the main shaft. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a whole structure schematic view of a composite tool for lightweight milling machine machining of a fan main shaft.

[0029] Figure 2 It is Figure 1 An enlarged schematic view of part A in the figure.

[0030] Figure 3 It is Figure 1 An enlarged schematic view of part B in the figure.

[0031] Figure 4 It is a state schematic view of the first switch device being opened.

[0032] Figure 5 It is a structure schematic view of the first locking device and the second locking device.

[0033] Figure 6It is a side view of a composite tool for milling fan main shaft.

[0034] Figure 7 It is a state diagram of a large-diameter main shaft placed in a composite tool.

[0035] Figure 8 It is a state diagram of a small-diameter main shaft placed in a composite tool.

[0036] Figure 9 It is a partial schematic view of a first positioning member and a second positioning member.

[0037] Explanation of reference signs:

[0038] 1, workbench; 11, positioning support; 2, first support; 21, first support head; 22, first fixed frame; 3, first switch device; 31, first connecting frame; 32, first rotating shaft; 33, first rotating frame; 331, first positioning member; 4, first locking device; 41, first containing groove; 42, first locking groove; 43, first communication groove; 44, first limiting rod; 45, first locking rod; 46, first nut; 5, second support; 51, second support head; 52, second fixed frame; 6, second switch device; 61, second connecting frame; 62, second rotating shaft; 63, second rotating frame; 631, second positioning member; 7, second locking device; 71, second containing groove; 72, second locking groove; 73, second communication groove; 74, second limiting rod; 75, second locking rod; 77, second nut; 8, jack; 9, limiting device; 91, fixed block; 92, screw rod. DETAILED DESCRIPTION

[0039] In order for those skilled in the art to better understand the technical solutions in the specification, the technical solutions in the specification will be clearly and completely described below in combination with the drawings in the specification. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0040] In the description of the embodiments of the present application, the words such as "for example" or "for instance" are used to represent an example, illustration or description. Any embodiment or design scheme described as "for example" or "for instance" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as "for example" or "for instance" are intended to present the relevant concept in a specific way.

[0041] In the description of the embodiments of the present application, the term "a plurality of" means two or more. For example, a plurality of systems means two or more systems, and a plurality of screen terminals means two or more screen terminals. In addition, the terms "first" and "second" are used only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. The terms "include", "contain", "have" and their variants mean "include but are not limited to", unless otherwise specifically emphasized.

[0042] A composite tool for processing a fan main shaft lightweight milling machine, referring to Figure 1 , comprising a workbench 1, the workbench 1 is fixedly connected with a positioning support 11, a first support 2 and a second support 5, the first support 2 and the second support 5 are respectively arranged at both ends of the workbench 1, and the positioning support 11 is arranged on the side of the first support 2 away from the second support 5, for limiting the main shaft flange.

[0043] Referring to Figure 1 , the first support 2 movably connects a first switch device 3, and the first switch device 3 and the first support 2 form a first placing space for placing the main shaft. The first switch device 3 is connected with a first positioning piece 331 for limiting the main shaft from the top of the main shaft. The first support 2 is threadedly connected with a plurality of first support heads 21, the plurality of first support heads 21 are arranged in the first placing space and are distributed at intervals in the circumferential direction of the main shaft, for supporting the bottom of the main shaft. The second support 5 movably connects a second switch device 6, and the second switch device 6 and the second support 5 form a second placing space for placing the main shaft. The second switch device 6 is connected with a second positioning piece 631 for limiting the main shaft from the top of the main shaft. The second support 5 is threadedly connected with a plurality of second support heads 51, the plurality of second support heads 51 are arranged in the second placing space and are distributed at intervals in the circumferential direction of the main shaft, for supporting the bottom of the main shaft.

[0044] The first positioning piece 331 and the second positioning piece 631 limit the main shaft from the top of the main shaft, reducing the possibility of moving in the vertical direction. At the same time, the plurality of first support heads 21 and the plurality of second support heads 51 are distributed in the circumferential direction of the main shaft, uniformly supporting the bottom of the main shaft, and the first support heads 21 and the second support heads 51 can be adjusted, further improving the stability of the main shaft and reducing vibration and deformation. Therefore, the first support 2, the first support head 21, the second support 5, the second support head 51, the first positioning piece 331 and the second positioning piece 631 cooperate with each other to realize stable support and precise positioning of the fan main shaft, ensuring the position of the main shaft fixed during the lightweight milling machine processing, and reducing the possibility of processing errors caused by the main shaft shaking or shifting.

[0045] Referring to Figure 1In the embodiment, four first support heads 21 and four second support heads 51 are arranged. Two first support heads 21 and two second support heads 51 are arranged as a first group, and the remaining two first support heads 21 and the remaining two second support heads 51 are arranged as a second group.

[0046] With reference to Figure 1 , when the main shaft is horizontally placed on the first support 2 and the second support 5, the vertical plane in which the axis of the main shaft is located is vertical plane a. The two first support heads 21 in the first group are symmetrically arranged about the vertical plane a, and the two second support heads 51 in the first group are symmetrically arranged about the vertical plane a.

[0047] With reference to Figure 1 , the two first support heads 21 in the second group are symmetrically arranged about the vertical plane a, and the first support heads 21 in the second group are respectively located on both sides of the first support heads 21 in the first group. The two second support heads 51 in the second group are symmetrically arranged about the vertical plane a, and the second support heads 51 in the second group are respectively located on both sides of the second support heads 51 in the second group.

[0048] When the outer diameter specification of the main shaft is small, the main shaft abuts against the first support heads 21 and the second support heads 51 in the first group. When the outer diameter specification of the main shaft is large, the main shaft abuts against the first support heads 21 and the second support heads 51 in the second group.

[0049] With reference to Figure 2 and Figure 3 , the first support heads 21 and the second support heads 51 are provided with a plurality of first sharp ends near the end face of the main shaft, and the first sharp ends pierce into the main shaft.

[0050] The first sharp ends provided on the first support heads 21 and the second support heads 51 can effectively increase the friction between the support points and the main shaft, ensure the stability of the main shaft during machining, avoid machining errors caused by sliding, and improve machining precision and quality. The first sharp ends pierce into the surface of the main shaft, and the piercing position will be machined off on the lathe later, so it does not affect the quality of the main shaft, and can further enhance the reliability of the support.

[0051] With reference to Figure 4 , the first switch device 3 includes a first connecting frame 31, a first rotating shaft 32, and a first rotating frame 33. The first connecting frame 31 is fixedly connected to one side of the first support 2. The first rotating shaft 32 is vertically arranged, and the bottom end of the first rotating shaft 32 is fixedly connected to the top end of the first connecting frame 31. One end of the first rotating frame 33 is sleeved on the top end of the first rotating shaft 32 and is rotationally connected to the top end of the first rotating shaft 32.

[0052] With reference to Figure 4When the first rotating frame 33 is above the first support 2 and the first rotating frame 33 and the first support 2 are in the same vertical plane, the first switch device 3 and the first support 2 enclose a first placing space. The first rotating frame 33 is connected with a first locking device 4, and the side of the first support 2 away from the first connecting frame 31 is fixedly connected with a first fixed frame 22. The first locking device 4 is connected with the first fixed frame 22, so as to fix the first rotating frame 33 and the first support 2.

[0053] The structure design of the first switch device 3 makes the first rotating frame 33 open and close flexibly, so as to facilitate the putting in and taking out of the main shaft.

[0054] With reference to Figure 4 and Figure 5 , the first locking device 4 comprises a first containing groove 41, a first locking groove 42, a first communication groove 43, a first limiting rod 44, a first locking rod 45 and a first nut 46. The first containing groove 41 is arranged on the top surface of the first rotating frame 33 and is located at the end away from the first rotating shaft 32. The first locking groove 42 is arranged on one side of the first fixed frame 22. The first communication groove 43 is vertically arranged, and the first communication groove 43 communicates the first containing groove 41 and the first locking groove 42, and the side wall of the first communication groove 43 penetrates the side wall of the same side of the first rotating frame 33 and the first fixed frame 22.

[0055] With reference to Figure 5 , the first limiting rod 44 is horizontally arranged and clamped in the first containing groove 41. The first locking rod 45 is vertically arranged in the first communication groove 43, the top end of the first locking rod 45 extends into the first containing groove 41 and is fixedly connected with the first limiting rod 44. The bottom end of the first locking rod 45 extends into the first locking groove 42. The first nut 46 is arranged in the first locking groove 42 and is threadedly connected with the first locking rod 45. When the first nut 46 abuts against the first fixed frame 22, the first rotating frame 33 and the first fixed frame 22 are fixed.

[0056] The design of the first containing groove 41, the first locking groove 42 and the first communication groove 43 makes the first limiting rod 44 be able to move out or into the first containing groove 41, and at the same time, the first locking rod 45 be able to be smoothly removed or put into the first communication groove 43. The first limiting rod 44 is clamped in the first containing groove 41, and the first locking rod 45 is fixed with the first fixed frame 22 through the first nut 46, so as to realize the close fixing of the first rotating frame 33 and the first fixed frame 22, reduce the possibility of loosening caused by vibration or external force, and improve the reliability and safety of the whole composite tool.

[0057] With reference to Figure 4The second switch device 6 comprises a second connecting frame 61, a second rotating shaft 62 and a second rotating frame 63. The second connecting frame 61 is fixedly connected to one side of the second support 5. The second rotating shaft 62 is vertically arranged, and the bottom end of the second rotating shaft 62 is fixedly connected to the top end of the second connecting frame 61. One end of the second rotating frame 63 is sleeved on the top end of the second rotating shaft 62 and rotationally connected to the top end of the second rotating shaft 62.

[0058] With reference to Figure 4 When the second rotating frame 63 is located above the second support 5 and the second rotating frame 63 and the second support 5 are located in the same vertical plane, the second switch device 6 and the second support 5 enclose a second placing space. The second rotating frame 63 is connected with a second locking device 7, and the second support 5 is fixedly connected to one side away from the second connecting frame 61. The second locking device 7 is connected to the second fixed frame 52, so as to fix the second rotating frame 63 and the second support 5.

[0059] The structure design of the second switch device 6 enables the second rotating frame 63 to rotate around the second rotating shaft 62, so as to conveniently open or close the second placing space, and facilitate the placing and taking out of the main shaft.

[0060] With reference to Figure 4 and Figure 5 The second locking device 7 comprises a second containing groove 71, a second locking groove 72, a second communication groove 73, a second limiting rod 74, a second locking rod 75 and a second nut 77. The second containing groove 71 is arranged on the top surface of the second rotating frame 63 and located at one end away from the second rotating shaft 62. The second locking groove 72 is arranged on one side of the second fixed frame 52. The second communication groove 73 is vertically arranged, and the second communication groove 73 communicates the second containing groove 71 and the second locking groove 72, and the side wall of the second communication groove 73 penetrates the side wall of the same side of the second rotating frame 63 and the second fixed frame 52.

[0061] With reference to Figure 5 The second limiting rod 74 is horizontally arranged and clamped in the second containing groove 71. The second locking rod 75 is vertically arranged in the second communication groove 73, the top end of the second locking rod 75 extends into the second containing groove 71 and is fixedly connected to the second limiting rod 74. The bottom end of the second locking rod 75 extends into the second locking groove 72. The second nut 77 is arranged in the second locking groove 72 and is threadedly connected to the second locking rod 75. When the second nut 77 abuts against the second fixed frame 52, the second rotating frame 63 and the second fixed frame 52 are fixed.

[0062] The design of the second containing groove 71, the second locking groove 72 and the second communication groove 73 enables the second limiting rod 74 to be removed or placed in the second containing groove 71, and the second locking rod 75 to be removed or placed in the second communication groove 73. The second limiting rod 74 is clamped in the second containing groove 71, and the second locking rod 75 is fixed with the second fixed frame 52 through the second nut 77, thereby realizing the close fixing of the second rotating frame 63 and the second fixed frame 52, reducing the possibility of loosening caused by vibration or external force, and thereby improving the reliability and safety of the entire composite tool.

[0063] With reference to Figure 4 and Figure 6 , the bottom of the first rotating frame 33 is higher than the top of the second rotating frame 63. The first positioning member 331 is vertically arranged, and the top end of the first positioning member 331 is threadedly connected with the first rotating frame 33. The second positioning member 631 is vertically arranged, and the top end of the second positioning member 631 is threadedly connected with the second rotating frame 63.

[0064] During the installation and disassembly process, the operator can more conveniently open or close the first rotating frame 33 and the second rotating frame 63 at the same time, and they will not affect each other, reducing the inconvenience caused by height limitation and improving the work efficiency.

[0065] With reference to Figure 7 and Figure 8 , the first positioning member 331 and the second positioning member 631 are structurally identical, and both include a fixed part and a positioning part. The fixed part is threadedly connected with the rotating frame, the positioning part is threadedly connected with the fixed part, and the positioning part abuts against the main shaft. The length of the fixed part can be replaced according to the actual situation of the outer diameter of the main shaft.

[0066] With reference to Figure 9 , the end face of the first positioning member 331 and the second positioning member 631 close to the main shaft is provided with a plurality of second sharp ends, and the second sharp ends are inserted into the main shaft.

[0067] The second sharp ends are inserted into the surface of the main shaft, and the insertion position will be machined off on the lathe later, so it does not affect the quality of the main shaft, and effectively enhances the positioning stability of the main shaft, reduces the possibility of movement or deviation of the main shaft during machining, improves the machining precision and reliability, and ensures the overall quality of the main shaft.

[0068] With reference to Figure 1 and Figure 7 , the second support 5 is fixedly connected with a jack 8, and the jack 8 is arranged between the two second support heads 51 of the first group. When the diameter of the main shaft is large, the jack 8 abuts against the main shaft. The jack 8 is used to adjust the levelness of the main shaft.

[0069] With reference to Figure 4 and Figure 5The fan main shaft lightweight milling machine processing composite tool further includes four limiting devices 9.

[0070] With reference to Figure 4 and Figure 5 The two limiting devices 9 corresponding to the first support 2 are arranged on both sides of the main shaft and correspond to the first fixed frame 22 and the first connecting frame 31 one by one, and assist in limiting the main shaft. The two limiting devices 9 corresponding to the second support 5 are arranged on both sides of the main shaft and correspond to the second fixed frame 52 and the second connecting frame 61 one by one, and assist in limiting the main shaft.

[0071] With reference to Figure 4 and Figure 5 The limiting device 9 includes a fixed block 91 and a screw rod 92, the screw rod 92 is arranged horizontally and passes through the fixed block 91, the screw rod 92 is threadedly connected with the fixed block 91, and one end of the screw rod 92 away from the main shaft is fixedly connected with a rotating handle. The fixed block 91 corresponding to the first fixed frame 22 is fixedly connected with the first fixed frame 22; the fixed block 91 corresponding to the first connecting frame 31 is fixedly connected with the first connecting frame 31; the fixed block 91 corresponding to the second fixed frame 52 is fixedly connected with the second fixed frame 52; and the fixed block 91 corresponding to the second connecting frame 61 is fixedly connected with the second connecting frame 61.

[0072] Rotating the rotating handle makes the screw rod 92 close to the main shaft until the screw rod 92 abuts against the main shaft, so that the auxiliary limiting of the main shaft is realized.

[0073] The use principle of the application is as follows: when a main shaft with a small diameter is used, the first switch device 3 and the second switch device 6 are opened, the main shaft is hoisted and placed on the first support 2 and the second support 5, the positioning support 11 limits the flange of the main shaft, the longitudinal position of the main shaft is ensured to be accurate, and the two first support heads 21 and the two second support heads 51 of the first group are used to support the main shaft. Then the first switch device 3 and the second switch device 6 are closed, the first switch device 3 and the first support 2 enclose the first placing space, the second switch device 6 and the second support 5 enclose the second placing space, appropriate lengths of the first positioning member 331 and the second positioning member 631 are selected, the positions of the first positioning member 331 and the second positioning member 631 are adjusted, the first positioning member 331 and the second positioning member 631 are inserted into the main shaft to limit the main shaft, and the possibility of movement of the main shaft in the vertical direction is reduced. Meanwhile, the two first support heads 21 and the two second support heads 51 of the first group are distributed in the circumferential direction of the main shaft and uniformly support the bottom of the main shaft. The first support head 21 and the second support head 51 of the first group can be finely adjusted, the stability of the main shaft is further improved, and vibration and deformation are reduced.

[0074] Similarly, when the main shaft with large diameter is used, the difference from the above steps is that the jack 8 is extended and the levelness of the main shaft is adjusted. At the same time, the main shaft is supported by using two first support heads 21 and two second support heads 51 of the second group, and the two first support heads 21 and the two second support heads 51 of the second group are distributed in the circumferential direction of the main shaft to uniformly support the bottom of the main shaft. The first support head 21 and the second support head 51 of the second group can be finely adjusted, further improving the stability of the main shaft and reducing vibration and deformation.

[0075] The embodiments of the specific embodiment are the preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A composite tooling for lightweight milling machining of a fan spindle, characterized in that: The utility model provides a workbench, which comprises a workbench (1), a positioning support (11), a first support (2) and a second support (5), the first support (2) and the second support (5) are arranged at two ends of the workbench (1) respectively, the positioning support (11) is arranged on the side of the first support (2) away from the second support (5) and is used for limiting a main shaft flange; The first support (2) is movably connected with a first switch device (3), the first switch device (3) and the first support (2) enclose a first placing space for placing the main shaft, the first switch device (3) is connected with a first positioning piece (331) for limiting the main shaft from the top of the main shaft, the first support (2) is screwedly connected with a plurality of first support heads (21), the plurality of first support heads (21) are arranged in the first placing space and are distributed at intervals in the circumferential direction of the main shaft and are used for supporting the bottom of the main shaft; The second support (5) is movably connected with a second switch device (6), the second switch device (6) and the second support (5) enclose a second placing space for placing the main shaft, the second switch device (6) is connected with a second positioning piece (631) for limiting the main shaft from the top of the main shaft, the second support (5) is screwedly connected with a plurality of second support heads (51), the plurality of second support heads (51) are arranged in the second placing space and are distributed at intervals in the circumferential direction of the main shaft and are used for supporting the bottom of the main shaft.

2. A composite tool for machining a fan main shaft according to claim 1, characterized in that: End faces of the first support head (21) and the second support head (51) are provided with a plurality of first sharp ends, and the first sharp ends are inserted into the main shaft.

3. A composite tool for machining a fan main shaft according to claim 1, characterized in that: End faces of the first positioning piece (331) and the second positioning piece (631) close to the main shaft are provided with a plurality of second sharp ends, and the second sharp ends are inserted into the main shaft.

4. A composite tool for machining a fan main shaft according to claim 1, characterized in that: The first switch device (3) comprises a first connecting frame (31), a first rotating shaft (32) and a first rotating frame (33), the first connecting frame (31) is connected with the first support (2), a first end of the first rotating shaft (32) is fixedly connected with the first connecting frame (31), a second end is rotationally connected with the first rotating frame (33), when the first rotating frame (33) is located above the first support (2), the first switch device (3) and the first support (2) enclose the first placing space, and the first positioning piece (331) is detachably connected with the first rotating frame (33).

5. A composite tool for machining a fan main shaft according to claim 4, characterized in that: The first support (2) is connected with a first fixing frame (22), one end of the first rotating frame (33) away from the first rotating shaft (32) is connected with a first locking device (4), the first locking device (4) is connected with the first fixing frame (22) and is used for fixing the first rotating frame (33) and the first fixing frame (22).

6. A composite tool for machining a fan main shaft according to claim 5, characterized in that: The first locking device (4) comprises a first containing groove (41), a first locking groove (42), a first communication groove (43), a first limiting rod (44), a first locking rod (45) and a first nut (46), the first containing groove (41) is arranged on the first rotating frame (33), the first locking groove (42) is arranged on the first fixed frame (22), the first communication groove (43) is communicated with the first containing groove (41) and the first locking groove (42), and the side wall of the first communication groove (43) penetrates the side wall of the same side of the first rotating frame (33) and the first fixed frame (22); The first limiting rod (44) is clamped in the first containing groove (41), the first locking rod (45) is arranged in the first communication groove (43), one end of the first locking rod (45) is connected with the first limiting rod (44), the other end of the first locking rod (45) extends into the first locking groove (42), the first nut (46) is arranged in the first locking groove (42) and is in threaded connection with the first locking rod (45), and the first nut (46) is in abutment with the first fixed frame (22), so that the first rotating frame (33) and the first fixed frame (22) are fixed.

7. A composite tool for machining a fan main shaft according to claim 4, characterized in that: The second switch device (6) comprises a second connecting frame (61), a second rotating shaft (62) and a second rotating frame (63), the second connecting frame (61) is connected with the second support (5), the first end of the second rotating shaft (62) is fixedly connected with the second connecting frame (61), the second end of the second rotating shaft (62) is rotatably connected with the second rotating frame (63), when the second rotating frame (63) is located above the second support (5), the second switch device (6) and the second support (5) form a second placing space, and the second positioning piece (631) is detachably connected with the second rotating frame (63).

8. A composite tool for machining a fan main shaft according to claim 7, characterized in that: The bottom of the first rotating frame (33) is higher than the top of the second rotating frame (63).

9. A composite tool for machining a fan main shaft according to claim 7, characterized in that: The second support (5) is connected with a second fixed frame (52), one end of the second rotating frame (63) away from the second rotating shaft (62) is connected with a second locking device (7), the second locking device (7) is connected with the second fixed frame (52), and the second locking device (7) is used for fixing the second rotating frame (63) and the second fixed frame (52).

10. A composite tool for machining a fan main shaft according to claim 1, characterized in that: The first support (2) is connected with a jack (8), the jack (8) is arranged in the second placing space, and is used for adjusting the levelness of the main shaft.

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