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

Abstract

The invention 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 present application relates to the technical field of fan spindle processing equipment, and in particular to a composite tooling for lightweight milling machine processing of fan spindles. Background Art

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

[0003] However, in practical applications, existing fixtures still have obvious defects in ensuring the stability and flexibility of the spindle. Existing fixtures have limitations in adapting to spindles of different sizes and shapes, and often require frequent fixture replacement, which increases production costs and time. Therefore, how to design a fixture that can effectively fix and position the spindle while having good stability and flexibility has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] In order to improve the processing efficiency and quality of a fan main shaft, the present invention provides a composite tooling for processing a fan main shaft with a lightweight milling machine.

[0005] The composite tooling for lightweight milling of a fan spindle provided by the present invention adopts the following technical solution: A composite tool for lightweight milling machine processing of a fan spindle comprises a workbench, the workbench is connected with a positioning bracket, a first bracket and a second bracket, the first bracket and the second bracket are respectively arranged at two ends of the workbench, the positioning bracket is arranged on a side of the first bracket away from the second bracket, and is used to limit the spindle flange; the first bracket is movably connected with a first switch device, the first switch device and the first bracket form a first placement space for placing the spindle, the first switch device is connected with a first positioning piece from the top of the spindle for limiting the spindle, the first bracket is threadedly connected with a plurality of first support heads, the plurality of first support heads are arranged in the first placement space, and are distributed at intervals around the spindle circumferentially, and are used to support the bottom of the spindle; the second bracket is movably connected with a second switch device, the second switch device and the second bracket form a second placement space for placing the spindle, the second switch device is connected with a second positioning piece from the top of the spindle for limiting the spindle, the second bracket is threadedly connected with a plurality of second support heads, the plurality of second support heads are arranged in the second placement space, and are distributed at intervals around the spindle circumferentially, and are used to support the bottom of the spindle.

[0006] By adopting the above technical solution, when in use, open the first switch device and the second switch device, lift the spindle and place it on the first bracket and the second bracket, so that the positioning bracket limits the spindle flange to ensure the accurate longitudinal position of the spindle, and the first support head and the second support head support the spindle. Then close the first switch device and the second switch device, and the first switch device and the second switch device respectively enclose the first placement space and the second placement space with the first bracket and the second bracket to form multi-point support for the spindle to ensure the stability of the spindle during processing. Adjust the first positioning member and the second positioning member so that the first positioning member and the second positioning member limit the spindle from the top to reduce the possibility of the spindle moving in the vertical direction. At the same time, multiple first support heads and second support heads are distributed on the circumference of the spindle to evenly support the bottom of the spindle, and the first support head and the second support head can be fine-tuned to further improve the stability of the spindle and reduce vibration and deformation. Therefore, the first bracket, the first supporting head, the second bracket, the second supporting head, the first positioning member and the second positioning member cooperate with each other to achieve stable support and precise positioning of the fan spindle, ensure the fixed position of the spindle during the lightweight milling machine processing, and reduce the possibility of processing errors caused by spindle shaking or offset.

[0007] Preferably, the end surfaces of the first supporting head and the second supporting head are both provided with a plurality of first tips, and the first tips penetrate into the main shaft.

[0008] By adopting the above technical solution, the first tip provided on the first support head and the second support head can effectively increase the friction between the support point and the spindle, ensure that the spindle is stable and motionless during the processing, avoid processing errors caused by sliding, and improve processing accuracy and quality. The first tip pierces the surface of the spindle, and the position where the casting is inserted will be processed on the lathe later, so it does not affect the quality of the spindle, and can further enhance the reliability of the support.

[0009] Preferably, the end surfaces of the first positioning member and the second positioning member close to the main shaft are both provided with a plurality of second tips, and the second tips penetrate into the main shaft.

[0010] By adopting the above technical solution, the second tip is inserted into the surface of the spindle, and the inserted position will be processed on the lathe later, so it does not affect the quality of the spindle, and effectively enhances the positioning stability of the spindle, reduces the possibility of movement or deviation of the spindle during processing, improves processing accuracy and reliability, and ensures the overall quality of the spindle.

[0011] Preferably, the first switch device includes a first connecting frame, a first rotating shaft and a first rotating frame, the first connecting frame is connected to the first bracket, the first end of the first rotating shaft is fixedly connected to the first connecting frame, and the second end is rotatably connected to the first rotating frame, when the first rotating frame is located above the first bracket, the first switch device and the first bracket form a first placement space, and the first positioning member is detachably connected to the first rotating frame.

[0012] By adopting the above technical solution, the structural design of the first switch device allows the first rotating frame to be flexibly opened and closed, thereby facilitating the placement and removal of the spindle. When the first rotating frame is located above the first bracket, the first switch device and the first bracket together form a stable first placement space for placing the spindle. At the same time, the detachable connection design of the first positioning member and the first rotating frame enables the first adjustment positioning member to adapt to spindles of different specifications, thereby improving the adaptability and flexibility of the entire composite tooling.

[0013] Preferably, the first bracket is connected to a first fixed frame, and one end of the first rotating frame away from the first rotating shaft is connected to a first locking device, and the first locking device is connected to the first fixed frame to achieve fixation of the first rotating frame and the first fixed frame.

[0014] By adopting the above technical solution, the first locking device realizes the stable fixation of the first rotating frame and the first fixed frame, ensures the stability of the first rotating frame when it is in a fixed position, reduces the possibility of loosening due to vibration or impact during processing, and improves processing accuracy and safety.

[0015] Preferably, the first locking device includes a first receiving groove, a first locking groove, a first connecting groove, a first limiting rod, a first locking rod and a first nut, the first receiving groove is opened on the first rotating frame, the first locking groove is arranged on the first fixed frame, the first connecting groove connects the first receiving groove and the first locking groove, and the side wall of the first connecting groove passes through the side wall on the same side of the first rotating frame and the first fixed frame; the first limiting rod is clamped in the first receiving groove, the first locking rod is arranged in the first connecting groove, one end of the first locking rod is connected to the first limiting rod and the other end extends into the first locking groove, the first nut is arranged in the first locking groove and is threadedly connected to the first locking rod, and when the first nut abuts against the first fixed frame, the first rotating frame and the first fixed frame are fixed.

[0016] By adopting the above technical solution, the first locking device can effectively fix the first rotating frame and the first fixed frame, ensuring the stability of the first rotating frame during the processing. Specifically: the design of the first containing groove, the first locking groove and the first connecting groove enables the first limit rod to be moved out or put in the first containing groove, and the first locking rod can be smoothly removed or put in the first connecting groove. The first limit rod is clamped in the first containing groove, and the first locking rod is fixed to the first fixed frame by the first nut, thereby realizing the tight fixation of the first rotating frame and the first fixed frame, reducing the possibility of loosening due to vibration or external force, thereby improving the reliability and safety of the entire composite tooling.

[0017] Preferably, the second switch device includes a second connecting frame, a second rotating shaft and a second rotating frame, the second connecting frame is connected to the second bracket, the first end of the second rotating shaft is fixedly connected to the second connecting frame, and the second end is rotatably connected to the second rotating frame, when the second rotating frame is located above the second bracket, the second switch device and the second bracket form a second placement space, and the second positioning member is detachably connected to the second rotating frame.

[0018] By adopting the above technical solution, the structural 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 placement space, which is convenient for placing and removing the spindle. At the same time, the second placement space surrounded by the second rotating frame and the second bracket can effectively fix the spindle, reducing the possibility of the spindle moving during the processing. In addition, the detachable connection between the second positioning member and the second rotating frame further improves the flexibility and convenience of operation.

[0019] Preferably, the bottom of the first rotating frame is higher than the top of the second rotating frame.

[0020] By adopting the above technical solution, this design allows the operator to more conveniently open or close the first rotating frame and the second rotating frame at the same time during the installation and disassembly process without affecting each other, thereby reducing the operational inconvenience caused by height restrictions and improving work efficiency.

[0021] Preferably, the second bracket is connected to a second fixed frame, an end of the second rotating frame away from the second rotating shaft is connected to a second locking device, and the second locking device is connected to the second fixed frame to achieve fixation of the second rotating frame and the second fixed frame.

[0022] By adopting the above technical solution, the second locking device realizes the firm fixation of the second rotating frame and the second fixed frame, which ensures that the second rotating frame can be stably maintained at the desired position during the processing, thereby improving the processing accuracy and safety. At the same time, the design of the second locking device makes the operation easier and improves the work efficiency.

[0023] Preferably, the first bracket is connected to a jack, and the jack is arranged in the second placement space and is used to adjust the horizontality of the main shaft.

[0024] By adopting the above technical solution, the jack can adjust the horizontality of the main shafts with different diameters, so that the axis of the main shaft is kept on the horizontal plane.

[0025] In summary, the present invention has the following beneficial effects: When in use, open the first switch device and the second switch device, lift the spindle and place it on the first bracket and the second bracket, so that the positioning bracket limits the spindle flange to ensure the accurate longitudinal position of the spindle, and the first support head and the second support head support the spindle. Then close the first switch device and the second switch device, the first switch device and the first bracket form a first placement space, and the second switch device and the second bracket form a second placement space, forming multi-point support for the spindle to ensure the stability of the spindle during processing. Adjust the first positioning member and the second positioning member so that the first positioning member and the second positioning member limit the spindle from the top to reduce the possibility of the spindle moving in the vertical direction. At the same time, multiple first support heads and second support heads are distributed on the circumference of the spindle to evenly support the bottom of the spindle, and the first support head and the second support head can be fine-tuned to further improve the stability of the spindle and reduce vibration and deformation. Therefore, the first bracket, the first supporting head, the second bracket, the second supporting head, the first positioning member and the second positioning member cooperate with each other to achieve stable support and precise positioning of the fan spindle, ensure the fixed position of the spindle during the lightweight milling machine processing, and reduce the possibility of processing errors caused by spindle shaking or offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The diagram is a schematic diagram of the overall structure of a composite tooling for lightweight milling machine processing of a fan spindle.

[0027] Figure 2 yes Figure 1 Enlarged schematic diagram of part A.

[0028] Figure 3 yes Figure 1 Schematic diagram of the enlarged portion B.

[0029] Figure 4 Schematic diagram of the state in which the first switch device is opened.

[0030] Figure 5 It is a schematic diagram of the structure of the first locking device and the second locking device.

[0031] Figure 6 It is a side view of a composite tooling for lightweight milling machine processing of fan spindle.

[0032] Figure 7 This is a diagram of the state where a large diameter spindle is placed on a composite tooling.

[0033] Figure 8 This is a diagram of the state where a small diameter spindle is placed on a composite tooling.

[0034] Fig. 9 It is a partial schematic diagram of the first positioning member and the second positioning member.

[0035] Description of reference numerals: 1. Workbench; 11. Positioning bracket; 2. First bracket; 21. First supporting head; 22. First fixing bracket; 3. First switch device; 31. First connecting bracket; 32. First rotating shaft; 33. First rotating bracket; 331. First positioning member; 4. First locking device; 41. First containing groove; 42. First locking groove; 43. First connecting groove; 44. First limiting rod; 45. First locking rod; 46. First nut; 5. Second bracket ; 51. second supporting head; 52. second fixing frame; 6. second switching 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 connecting groove; 74. second limiting rod; 75. second locking rod; 77. second nut; 8. jack; 9. limiting device; 91. fixing block; 92. screw. DETAILED DESCRIPTION

[0036] In order to enable technicians in this field to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments.

[0037] In the description of the embodiments of the present application, words such as "for example" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "for example" or "for example" is intended to present related concepts in a specific way.

[0038] In the description of the embodiments of the present application, the meaning of the term "multiple" refers to two or more. For example, multiple systems refer to two or more systems, and multiple screen terminals refer to two or more screen terminals. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0039] A composite tooling for lightweight milling machine processing of fan spindle, refer to Figure 1 , including a workbench 1, the workbench 1 is fixedly connected with a positioning bracket 11, a first bracket 2 and a second bracket 5, the first bracket 2 and the second bracket 5 are respectively arranged at two ends of the workbench 1, and the positioning bracket 11 is arranged on a side of the first bracket 2 away from the second bracket 5, and is used to limit the spindle flange.

[0040] Reference Figure 1 The first bracket 2 is movably connected with a first switch device 3, and the first switch device 3 and the first bracket 2 form a first placement space for placing the main shaft. The first switch device 3 is connected to a first positioning member 331 from the top of the main shaft for limiting the main shaft. The first bracket 2 is threadedly connected with a plurality of first support heads 21, and the plurality of first support heads 21 are arranged in the first placement space and are distributed at intervals around the main shaft to support the bottom of the main shaft. The second bracket 5 is movably connected with a second switch device 6, and the second switch device 6 and the second bracket 5 form a second placement space for placing the main shaft. The second switch device 6 is connected to a second positioning member 631 from the top of the main shaft for limiting the main shaft. The second bracket 5 is threadedly connected with a plurality of second support heads 51, and the plurality of second support heads 51 are arranged in the second placement space and are distributed at intervals around the main shaft to support the bottom of the main shaft.

[0041] The first positioning member 331 and the second positioning member 631 limit the spindle from the top to reduce the possibility of the spindle moving in the vertical direction. At the same time, multiple first support heads 21 and second support heads 51 are distributed in the circumference of the spindle to evenly support the bottom of the spindle, and the first support head 21 and the second support head 51 can be fine-tuned to further improve the stability of the spindle and reduce vibration and deformation. Therefore, the first bracket 2, the first support head 21, the second bracket 5, the second support head 51, the first positioning member 331 and the second positioning member 631 cooperate with each other to achieve stable support and precise positioning of the fan spindle, ensure the position of the spindle is fixed during the lightweight milling machine processing, and reduce the possibility of processing errors caused by spindle shaking or offset.

[0042] Reference Figure 1In this embodiment, four first support heads 21 are provided, and four second support heads 51 are provided. Two first support heads 21 and two second support heads 51 are provided as a first group; the remaining two first support heads 21 and the remaining two second support heads 51 are provided as a second group.

[0043] Reference Figure 1 When the spindle is horizontally placed on the first bracket 2 and the second bracket 5, the vertical plane where the axis of the spindle is located is the 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.

[0044] Reference 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. When the outer diameter of the spindle is small, the spindle abuts against the first support head 21 and the second support head 51 in the first group. When the outer diameter of the spindle is large, the spindle abuts against the first support head 21 and the second support head 51 in the second group.

[0045] Reference Figure 2 and Figure 3 The first support head 21 and the second support head 51 are provided with a plurality of first tips on the end surfaces close to the main shaft, and the first tips penetrate into the main shaft.

[0046] The first tip provided on the first support head 21 and the second support head 51 can effectively increase the friction between the support point and the spindle, ensure that the spindle is stable and immobile during the processing, avoid processing errors caused by sliding, and improve processing accuracy and quality. The first tip is inserted into the surface of the spindle, and the inserted position will be processed on the lathe later, so it does not affect the quality of the spindle, and can further enhance the reliability of the support.

[0047] Reference 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 bracket 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 rotatably connected to the top end of the first rotating shaft 32.

[0048] Reference Figure 4When the first rotating frame 33 is located above the first bracket 2 and the first rotating frame 33 and the first bracket 2 are located in the same vertical plane, the first switch device 3 and the first bracket 2 enclose a first placement space. The first rotating frame 33 is connected to the first locking device 4, and the first bracket 2 is fixedly connected to the first fixing frame 22 on the side away from the first connecting frame 31. The first locking device 4 is connected to the first fixing frame 22 to achieve the fixation of the first rotating frame 33 and the first bracket 2.

[0049] The structural design of the first switch device 3 enables the first rotating frame 33 to be flexibly opened and closed, thereby facilitating the insertion and removal of the spindle.

[0050] Reference Figure 4 and Figure 5 The first locking device 4 includes a first receiving groove 41, a first locking groove 42, a first connecting groove 43, a first limiting rod 44, a first locking rod 45 and a first nut 46. The first receiving groove 41 is formed on the top surface of the first rotating frame 33 and is arranged at an 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 connecting groove 43 is vertically formed, and the first connecting groove 43 connects the first receiving groove 41 and the first locking groove 42, and the side wall of the first connecting groove 43 passes through the side wall on the same side of the first rotating frame 33 and the first fixed frame 22.

[0051] Reference Figure 5 The first limiting rod 44 is horizontally arranged and clamped in the first receiving groove 41. The first locking rod 45 is vertically arranged in the first connecting groove 43. The top end of the first locking rod 45 extends into the first receiving 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 fixing frame 22, the first rotating frame 33 and the first fixing frame 22 are fixed.

[0052] The design of the first receiving groove 41, the first locking groove 42 and the first connecting groove 43 enables the first limiting rod 44 to be removed from or placed in the first receiving groove 41, and the first locking rod 45 to be smoothly removed from or placed in the first connecting groove 43. The first limiting rod 44 is clamped in the first receiving groove 41, and the first locking rod 45 is fixed to the first fixing frame 22 by the first nut 46, thereby realizing the tight fixation of the first rotating frame 33 and the first fixing frame 22, reducing the possibility of loosening due to vibration or external force, thereby improving the reliability and safety of the entire composite tooling.

[0053] Reference Figure 4The second switch device 6 includes 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 bracket 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 is rotatably connected to the top end of the second rotating shaft 62.

[0054] Reference Figure 4 When the second rotating frame 63 is located above the second bracket 5 and the second rotating frame 63 and the second bracket 5 are located in the same vertical plane, the second switch device 6 and the second bracket 5 enclose a second placement space. The second rotating frame 63 is connected to the second locking device 7, and the second fixing frame 52 is fixedly connected to the second side away from the second connecting frame 61. The second locking device 7 is connected to the second fixing frame 52 to achieve the fixation of the second rotating frame 63 and the second bracket 5.

[0055] The structural design of the second switch device 6 enables the second rotating frame 63 to rotate around the second rotating shaft 62, thereby conveniently opening or closing the second placement space and facilitating the placement and removal of the spindle.

[0056] Reference Figure 4 and Figure 5 The second locking device 7 includes a second receiving groove 71, a second locking groove 72, a second connecting groove 73, a second limiting rod 74, a second locking rod 75 and a second nut 77. The second receiving groove 71 is provided on the top surface of the second rotating frame 63 and is arranged at an 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 connecting groove 73 is vertically provided, and the second connecting groove 73 connects the second receiving groove 71 and the second locking groove 72, and the side wall of the second connecting groove 73 passes through the side wall on the same side of the second rotating frame 63 and the second fixed frame 52.

[0057] Reference Figure 5 The second limiting rod 74 is horizontally arranged and clamped in the second receiving groove 71. The second locking rod 75 is vertically arranged in the second connecting groove 73. The top end of the second locking rod 75 extends into the second receiving groove 71 and is fixedly connected with 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 with the second locking rod 75. When the second nut 77 abuts against the second fixing frame 52, the second rotating frame 63 and the second fixing frame 52 are fixed.

[0058] The design of the second containing groove 71, the second locking groove 72 and the second connecting groove 73 enables the second limiting rod 74 to be moved out of or put into the second containing groove 71, and the second locking rod 75 can be smoothly removed or put into the second connecting groove 73. The second limiting rod 74 is clamped in the second containing groove 71, and the second locking rod 75 is fixed to the second fixing frame 52 by the second nut 77, thereby realizing the tight fixation of the second rotating frame 63 and the second fixing frame 52, reducing the possibility of loosening due to vibration or external force, thereby improving the reliability and safety of the entire composite tooling.

[0059] Reference 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 of the first positioning member 331 is threadedly connected to the first rotating frame 33. The second positioning member 631 is vertically arranged, and the top of the second positioning member 631 is threadedly connected to the second rotating frame 63.

[0060] 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 without affecting each other, thereby reducing the operational inconvenience caused by height restrictions and improving work efficiency.

[0061] Reference Figure 7 and Figure 8 The first positioning member 331 and the second positioning member 631 have the same structure, both including a fixing portion and a positioning portion, the fixing portion is threadedly connected to the rotating frame, the positioning portion is threadedly connected to the fixing portion, and the positioning portion abuts against the main shaft. The length of the fixing portion can be changed according to the actual situation of the main shaft outer diameter.

[0062] Reference Fig. 9 The first positioning member 331 and the second positioning member 631 are provided with a plurality of second tips on the end surfaces close to the main shaft, and the second tips penetrate into the main shaft.

[0063] The second tip penetrates into the surface of the spindle, and the penetration position will be processed on the lathe later, so it does not affect the quality of the spindle. It effectively enhances the positioning stability of the spindle, reduces the possibility of the spindle moving or offset during processing, improves the processing accuracy and reliability, and ensures the overall quality of the spindle.

[0064] Reference Figure 1 and Figure 7 The second bracket 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 horizontality of the main shaft.

[0065] Reference Figure 4 and Figure 5The composite tooling for lightweight milling machine processing of fan main shaft also includes a limit device 9. There are four limit devices 9, and the four limit devices 9 are averagely divided into two groups, and the two groups of limit devices 9 correspond to the first bracket 2 and the second bracket 5 one by one.

[0066] Reference Figure 4 and Figure 5 The two limit devices 9 corresponding to the first bracket 2 are respectively arranged on both sides of the main shaft, and correspond one-to-one with the first fixing bracket 22 and the first connecting bracket 31, to assist in limiting the main shaft. The two limit devices 9 corresponding to the second bracket 5 are respectively arranged on both sides of the main shaft, and correspond one-to-one with the second fixing bracket 52 and the second connecting bracket 61, to assist in limiting the main shaft.

[0067] Reference Figure 4 and Figure 5 The limiting device 9 includes a fixed block 91 and a screw 92. The screw 92 is horizontally arranged and passes through the fixed block 91. The screw 92 is threadedly connected to the fixed block 91, and a rotating handle is fixedly connected to the end of the screw 92 away from the main shaft. Among them, the fixed block 91 corresponding to the first fixed frame 22 is fixedly connected to the first fixed frame 22; the fixed block 91 corresponding to the first connecting frame 31 is fixedly connected to the first connecting frame 31; the fixed block 91 corresponding to the second fixed frame 52 is fixedly connected to the second fixed frame 52; the fixed block 91 corresponding to the second connecting frame 61 is fixedly connected to the second connecting frame 61.

[0068] The rotating handle is turned to bring the screw rod 92 closer to the main shaft until the screw rod 92 abuts against the main shaft, thereby realizing auxiliary position limiting of the main shaft.

[0069] The principle of use of the present application is as follows: when a spindle with a small diameter is used, the first switch device 3 and the second switch device 6 are opened, the spindle is lifted and placed on the first bracket 2 and the second bracket 5, the positioning bracket 11 is used to limit the spindle flange, to ensure the accurate longitudinal position of the spindle, and the two first support heads 21 and the two second support heads 51 of the first group are used to support the spindle. Then the first switch device 3 and the second switch device 6 are closed, the first switch device 3 and the first bracket 2 form a first placement space, and the second switch device 6 and the second bracket 5 form a second placement space, and the first positioning member 331 and the second positioning member 631 of appropriate length 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 spindle, and the positioning member is limited to reduce the possibility of the spindle moving in the vertical direction. At the same time, the two first support heads 21 and the two second support heads 51 of the first group are distributed in the circumference of the spindle, and the bottom of the spindle is evenly supported. The first support head 21 and the second support head 51 of the first group can both be fine-tuned to further improve the stability of the spindle and reduce vibration and deformation.

[0070] Similarly, when a spindle with a large diameter is used, the difference from the above steps is that the jack 8 is extended to adjust the horizontality of the spindle. At the same time, the two first support heads 21 and the two second support heads 51 of the second group are used to support the spindle, and the two first support heads 21 and the two second support heads 51 of the second group are distributed in the circumference of the spindle to evenly support the bottom of the spindle. The first support heads 21 and the second support heads 51 of the second group can both be fine-tuned to further improve the stability of the spindle and reduce vibration and deformation.

[0071] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite tool for lightweight milling machine processing of fan spindle, characterized by: The workbench (1) comprises a positioning bracket (11), a first bracket (2) and a second bracket (5) connected to the workbench (1); the first bracket (2) and the second bracket (5) are respectively arranged at two ends of the workbench (1); the positioning bracket (11) is arranged on a side of the first bracket (2) away from the second bracket (5) and is used to limit the spindle flange; The first bracket (2) is movably connected to a first switch device (3), the first switch device (3) and the first bracket (2) enclose a first placement space for placing the main shaft, the first switch device (3) is connected to a first positioning member (331) from the top of the main shaft for limiting the main shaft, the first bracket (2) is threadedly connected to a plurality of first support heads (21), the plurality of first support heads (21) are arranged in the first placement space and are spaced apart around the circumference of the main shaft for supporting the bottom of the main shaft; The second bracket (5) is movably connected to a second switch device (6), and the second switch device (6) and the second bracket (5) enclose a second placement space for placing the main shaft. The second switch device (6) is connected to a second positioning member (631) from the top of the main shaft for limiting the main shaft. The second bracket (5) is threadedly connected to a plurality of second support heads (51), and the plurality of second support heads (51) are arranged in the second placement space and are spaced apart around the circumference of the main shaft for supporting the bottom of the main shaft.

2. The composite tooling for lightweight milling of fan spindle according to claim 1, characterized in that: The end surfaces of the first supporting head (21) and the second supporting head (51) are both provided with a plurality of first tips, and the first tips penetrate into the main shaft.

3. The composite tooling for lightweight milling of fan spindle according to claim 1, characterized in that: The end surfaces of the first positioning member (331) and the second positioning member (631) close to the main shaft are both provided with a plurality of second tips, and the second tips penetrate into the main shaft.

4. The composite tooling for lightweight milling of 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 to the first bracket (2); a first end of the first rotating shaft (32) is fixedly connected to the first connecting frame (31) and a second end is rotatably connected to the first rotating frame (33); when the first rotating frame (33) is located above the first bracket (2), the first switch device (3) and the first bracket (2) enclose a first placement space; the first positioning member (331) is detachably connected to the first rotating frame (33).

5. The composite tooling for lightweight milling of fan main shaft according to claim 4 is characterized in that: The first bracket (2) is connected to a first fixed frame (22); one end of the first rotating frame (33) away from the first rotating shaft (32) is connected to a first locking device (4); the first locking device (4) is connected to the first fixed frame (22) and is used to fix the first rotating frame (33) to the first fixed frame (22).

6. The composite tooling for lightweight milling of 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 connecting groove (43), a first limiting rod (44), a first locking rod (45) and a first nut (46); the first containing groove (41) is provided on the first rotating frame (33); the first locking groove (42) is provided on the first fixed frame (22); the first connecting groove (43) connects the first containing groove (41) and the first locking groove (42); and the side wall of the first connecting groove (43) passes through the side wall on 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 connecting groove (43), one end of the first locking rod (45) is connected to the first limiting rod (44), and the other end extends into the first locking groove (42), the first nut (46) is arranged in the first locking groove (42) and is threadedly connected to the first locking rod (45), and when the first nut (46) abuts against the first fixing frame (22), the first rotating frame (33) and the first fixing frame (22) are fixed.

7. The composite tooling for lightweight milling of fan main shaft according to claim 4 is characterized by: 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 to the second bracket (5); the first end of the second rotating shaft (62) is fixedly connected to the second connecting frame (61), and the second end is rotatably connected to the second rotating frame (63); when the second rotating frame (63) is located above the second bracket (5), the second switch device (6) and the second bracket (5) enclose a second placement space; the second positioning member (631) is detachably connected to the second rotating frame (63).

8. The composite tooling for lightweight milling of 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. The composite tooling for lightweight milling of a fan main shaft according to claim 7, characterized in that: The second bracket (5) is connected to a second fixed frame (52); one end of the second rotating frame (63) away from the second rotating shaft (62) is connected to a second locking device (7); the second locking device (7) is connected to the second fixed frame (52) for fixing the second rotating frame (63) to the second fixed frame (52).

10. The composite tooling for lightweight milling of fan main shaft according to claim 1, characterized in that: The first bracket (2) is connected to a jack (8), and the jack (8) is arranged in the second placement space and is used to adjust the horizontality of the main shaft.

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