A fan impeller keyway machining auxiliary device

Abstract

The present invention provides a fan impeller keyway processing auxiliary device, belonging to the field of fan impeller keyway processing technology. It comprises a mounting seat, the mounting seat is fixedly installed on a machine tool by bolts, and a movable seat is sleeved in the mounting seat, a fixed plate is rotatably connected in the movable seat, a three-jaw chuck is assembled on the outside of the fixed plate, three groups of evenly distributed clamping blocks are arranged on the three-jaw chuck, and a servo motor is fixedly installed on the side of the fixed plate away from the three-jaw chuck. The present invention arranges a first fixing component and a second fixing component, so that the fixing plate in the fan impeller keyway processing auxiliary device can adjust the position according to different processing steps, and can be quickly fixed by the first fixing component and the second fixing component after adjustment. The fixing operation is simple and easy for the staff to operate, and the stability after fixing is strong, which can provide a good working environment for the keyway processing of the fan impeller.

Description

Technical Field

[0001] The invention relates to the technical field of fan impeller keyway machining, and in particular to a fan impeller keyway machining auxiliary device. Background Art

[0002] The fan impeller is the core component of the fan. The safety and stability of its operation have a vital impact on the reliability of the entire unit. During the production and processing of the fan impeller, a keyway needs to be processed on the impeller's shaft disc to facilitate the subsequent assembly and connection of the fan impeller with the fan's drive shaft. The common processing method is to fix the fan impeller's shaft plate on the machine tool and process it through the machine tool.

[0003] In the prior art, the planer tool used for processing the keyway operates in a forward and backward motion, so that the impeller to be processed needs to be placed in a vertical position and clamped and fixed by a three-jaw chuck fixed on the machine tool. When the impeller after the keyway processing is completed is assembled with the drive shaft of the fan, the impeller needs to be removed from the three-jaw chuck and laid flat, and fixed by other clamping structures to facilitate the subsequent assembly between the shaft disc and the drive shaft. The entire operation process requires the use of multiple sets of auxiliary devices to clamp and fix the shaft disc, and the operation is relatively cumbersome. Therefore, the present application provides a fan impeller keyway processing auxiliary device to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a fan impeller keyway processing auxiliary device to solve the problem that multiple sets of auxiliary fixing devices are needed in the existing fan impeller keyway processing process and the operation process is cumbersome.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein the fixing plate is pivotally connected to the fixing plate by a bolt, and the fixing plate is pivotally connected to the fixing plate by a bolt. The fixing plate is outerly provided with a three-jaw chuck, and three groups of evenly distributed clamping blocks are arranged on the three-jaw chuck. A servo motor is fixedly mounted on a surface of the fixing plate away from the three-jaw chuck, and a driving shaft of the servo motor is fixedly connected to the three-jaw chuck; a reinforcement component is used to assist the clamping block in clamping and fixing the shaft disk of the impeller of the fan, and the reinforcement component is connected to the clamping block; a first fixing component is used to fix the relative position of the fixing plate and the mounting seat when they are parallel to each other, and the first fixing component is respectively connected to the mounting seat and the fixing plate; a second fixing component is used to fix the relative position of the fixing plate and the mounting seat when they are perpendicular to each other, and the second fixing component is connected to the mounting seat.

[0007] Optionally, one end of the fixed plate is movably connected to the movable seat via a shaft, and the other end of the fixed plate is fixedly connected with a bent end, the bent end is L-shaped, and a holding groove is provided on the bent end.

[0008] Optionally, guide rails are symmetrically installed in the mounting seat, the guide rails are fixedly connected to the inner side wall of the mounting seat and arranged parallel to the mounting seat, and a guide groove matching the shape of the guide rails is opened on the outside of the movable seat.

[0009] Optionally, the reinforcement component includes a clip fixedly connected to the outside of the clamping block, the clip is fixedly connected to the clamping block via a connecting plate, a first deformation groove is provided on the connecting plate, and a third deformation groove is provided at the connection between the connecting plate and the clip.

[0010] Optionally, the first fixing component includes a rack symmetrically installed in the mounting seat and a fixing frame fixedly connected to the outside of the fixing plate, the fixing frame is provided with evenly distributed first teeth, the rack is provided with evenly distributed second teeth, and the shapes of the first teeth and the second teeth are adapted to each other.

[0011] Optionally, the distance between the racks is greater than the diameter of the outside of the servo motor, the fixing frame is located between the servo motor and the bent end, and the end cross-sections of the first teeth and the second teeth are both trapezoidal.

[0012] Optionally, the second fixing component includes a fixing seat fixedly connected to the inside of the mounting seat, connecting plates are movably sleeved at both ends of the fixing seat, the connecting plate is slidably connected to the mounting seat, and a positioning seat is fixedly connected to the end of the connecting plate, and a slot matching the external shape of the fixing plate is opened on the positioning seat.

[0013] Optionally, the connecting plate is L-shaped, and a pull rod is fixedly connected to the outside of the connecting plate, a sliding groove matching the shape of the connecting plate is provided in the fixing seat, and evenly distributed springs are fixedly connected between the fixing seat and the connecting plate.

[0014] Optionally, positioning grooves are symmetrically provided on the fixing seat, a receiving groove is provided on one end of the connecting plate located in the fixing seat, an elastic plate is fixedly connected in the receiving groove, and a positioning block matching the size of the positioning groove is fixedly connected to the elastic plate.

[0015] Optionally, a second deformation groove is provided at the connection between the elastic plate and the connecting plate, a second guide surface is provided at the top of the positioning block, the bottom surface of the movable seat is flush with the top of the fixed seat, and an extrusion block corresponding to the position of the positioning groove is fixedly connected to the bottom of the movable seat, and a first guide surface adapted to the shape of the second guide surface is provided at the bottom of the extrusion block.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting the first fixing component and the second fixing component, the fixing plate in the fan impeller keyway processing auxiliary device can be adjusted in position according to different processing steps, and after adjustment, it is quickly fixed by the first fixing component and the second fixing component. The fixing operation is simple and easy for the staff to operate, and the stability after fixing is strong, which can provide a good working environment for the keyway processing of the fan impeller.

[0018] By setting up a reinforcement component, the structure on the clamping block is optimized for the shaft disc of the fan impeller. In view of the disc-shaped structure of the shaft disc, in addition to clamping and fixing the side of the shaft disc by the clamping block, the reinforcement component can also be used to assist in clamping the outside of the shaft disc. Under the premise of not interfering with the keyway processing of the fan impeller, the stability of the processing on the fixation of the shaft disc is further enhanced.

[0019] By setting the fixing seat and positioning groove as well as the elastic plate and positioning block in the second fixing component, when there is no need to clamp the fixing plate, the pull rod can be pulled to drive the connecting plate to move, so that the positioning block moves to the positioning groove, and then the elastic force of the elastic plate pushes the positioning block and the positioning groove to form a snap-fit ​​relationship, thereby locking the connecting plate and placing the positioning seat on the connecting plate on the outside of the mounting seat, thereby avoiding interference with the sliding of the fixing plate in the mounting seat, so that the entire device can play a good auxiliary role in each step of the entire fan impeller keyway processing process.

[0020] By providing an extrusion block at the bottom of the movable seat and an elastic plate and a positioning block in the second fixed assembly, the movable seat can drive the extrusion block to insert from the positioning groove to the top of the fixed seat during the movement of the fixed plate and the movable seat toward the positioning seat, so that the elastic plate is deformed and drives the positioning block to be stored in the storage groove, thereby releasing the locking of the positioning block and the positioning groove on the connecting plate, and at the same time, the connecting plate is reset under the elastic force of the spring, and drives the positioning seat to clamp and fix the fixing plate from both sides of the fixing plate, so that the fixing effect of the second fixing assembly on the fixing plate can be realized synchronously when the fixing plate is adjusted to the fixed position, and cooperates with the adjustment displacement operation of the fixing plate, and the fixing operation is simple and fast, which further improves the technical solution of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the fan impeller keyway processing auxiliary device;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure in which the fixing plate is placed flat on the mounting seat;

[0024] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0025] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the mounting seat;

[0026] Figure 5 for Figure 4 The enlarged structural diagram at B in the middle;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixed plate and the movable seat;

[0028] Figure 7 for Figure 6 The enlarged structural diagram at C in the middle;

[0029] Figure 8 It is a schematic diagram of the structure of the first state of the connection plate and the fixing seat;

[0030] Fig. 9 for Figure 8 The enlarged structural diagram at D in the middle;

[0031] Fig.10 It is a schematic diagram of the structure of the connecting plate and the fixing seat in the second state;

[0032] Fig.11 for Fig.10 Enlarged structural diagram at E in the middle.

[0033] Reference numerals:

[0034] 1. Mounting seat; 2. Rack; 3. Fixed plate; 4. Three-jaw chuck; 5. Clamping block; 6. Positioning seat; 7. Connecting plate; 8. Pull rod; 9. Guide rail; 10. Bending end; 11. Movable seat; 12. Connecting piece; 13. Clip; 14. First deformation groove; 15. Servo motor; 16. Fixed frame; 17. First tooth; 18. Second tooth; 19. Guide groove; 20. Extrusion block; 21. First guide surface; 22. Fixed seat; 23. Positioning groove; 24. Elastic plate; 25. Positioning block; 26. Second guide surface; 27. Receiving groove; 28. Sliding groove; 29. ​​Spring; 30. Second deformation groove; 31. Third deformation groove.

[0035] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0036] The following is a detailed description of a fan impeller keyway machining auxiliary device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0037] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0038] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0039] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0040] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0041] like Figures 1 to 11 As shown, an embodiment of the present invention provides a keyway processing auxiliary device for a ventilator impeller, comprising a mounting seat 1, which is fixedly mounted on a machine tool by bolts, and a movable seat 11 is sleeved in the mounting seat 1, and a fixed plate 3 is rotatably connected to the movable seat 11, and the fixed plate 3 can be rotatably adjusted in the movable seat 11, so as to change the angle between the fixed plate 3 and the mounting seat 1, and when the fixed plate 3 and the mounting seat 1 are in a vertical state, the fixed shaft disc can be keyway processed by a planer on the machine tool, and when the fixed plate 3 and the mounting seat 1 are deflected to a parallel state, the shaft disc is also in a horizontal state and can be assembled and connected with the driving shaft of the fan, and the outside of the fixed plate 3 is equipped with a three-jaw chuck 4, and the three-jaw chuck Three groups of evenly distributed clamping blocks 5 are arranged on the disk 4. The three-jaw chuck 4 on the fixed plate 3 clamps and fixes the shaft disk of the fan impeller through the clamping blocks 5 to ensure the stability of the shaft disk during the keyway processing of the fan impeller. The principle and usage of the three-jaw chuck 4 are the same as those in the prior art and will not be elaborated on here. A servo motor 15 is fixedly installed on the side of the fixed plate 3 away from the three-jaw chuck 4. The driving shaft of the servo motor 15 is fixedly connected to the three-jaw chuck 4. The servo motor 15 is used to drive the three-jaw chuck 4 to rotate as a whole, so that when the driving shaft and the shaft disk are spliced ​​and assembled, the three-jaw chuck 4 and the shaft disk can be driven to rotate to adjust the position of the keyway processed on the shaft disk, which is convenient for the positioning of the keyway.

[0042] The reinforcement component is used to assist the clamping block 5 in clamping and fixing the shaft disc of the fan impeller. The reinforcement component is connected to the clamping block 5. The reinforcement component enables the clamping block 5 to further adapt to the external shape of the shaft disc, and further enhances the fixing effect of the clamping block 5 on the fan impeller shaft disc without affecting the keyway processing; the first fixing component is used to fix the relative position between the fixing plate 3 and the mounting seat 1 when they are parallel to each other. The first fixing component is connected to the mounting seat 1 and the fixing plate 3 respectively. The position of the movable seat 11 and the fixing plate 3 in the mounting seat 1 can be adjusted by sliding the mounting seat 1. The first fixing component The fixed component can fix the position of the fixed plate 3 on the mounting seat 1 when the fixed plate 3 deflects to be parallel to the mounting seat 1, so as to ensure that the position of the shaft disc in the flat state is fixed; the second fixing component is used to fix the relative position of the fixed plate 3 and the mounting seat 1 when they are perpendicular to each other. The second fixing component is connected to the mounting seat 1. When the fixed plate 3 moves to the second fixing component following the movable seat 11, the second fixing component can be used to clamp and fix both sides of the fixed plate 3 in the vertical state to maintain the vertical state of the shaft disc with the keyway to be processed, so as to facilitate the processing of the keyway of the fan impeller by the planer on the machine tool.

[0043] In this embodiment, if Figures 2 to 7 As shown, one end of the fixed plate 3 is movably connected to the movable seat 11 through an axial rod, and the other end of the fixed plate 3 is fixedly connected with a bent end 10, the bent end 10 is L-shaped, and a holding groove is provided on the bent end 10, the fixed plate 3 can be deflected around the axial rod in the movable seat 11, so as to adjust the angle between the fixed plate 3 and the mounting seat 1, and after the bent end 10 on the fixed plate 3 is deflected to be parallel to the mounting seat 1, a certain gap is still left between the bent end 10 and the mounting seat 1 through the L-shaped structure of the bent end 10, so that the staff can put their hands into the gap and hold the holding groove, so that the fixed plate 3 can be more easily pulled to perform deflection activities, making the deflection adjustment operation of the fixed plate 3 simple and convenient. The guide rails 9 are symmetrically installed in the mounting seat 1. The guide rails 9 are fixedly connected to the inner wall of the mounting seat 1 and are arranged parallel to the mounting seat 1. A guide groove 19 that is adapted to the shape of the guide rails 9 is opened on the outside of the movable seat 11. The displacement of the movable seat 11 on the mounting seat 1 can drive the fixed plate 3 to produce corresponding displacement, so that the fixed plate 3 can be adjusted to a flat state at different positions in the mounting seat 1, so as to facilitate the positioning and docking of the three-jaw chuck 4 on the fixed plate 3 and the driving shaft of the ventilator after the keyway is processed. The guide groove 19 on the outside of the movable seat 11 is sleeved and connected with the guide rails 9 in the mounting seat 1, so as to limit the sliding height of the movable seat 11 in the mounting seat 1, reserve a certain space for the setting of the second fixed component, and provide limit and guidance for the movable seat 11 to ensure the movable trajectory of the movable seat 11.

[0044] In this embodiment, if Figure 2 and Figure 3 As shown, the reinforcement component includes a clip 13 fixedly connected to the outside of the clamping block 5, and the clip 13 is fixedly connected to the clamping block 5 through a connecting piece 12. A first deformation groove 14 is provided on the connecting piece 12, and a third deformation groove 31 is provided at the connection between the connecting piece 12 and the clip 13. The opening of the first deformation groove 14 and the third deformation groove 31 makes the thickness of the connecting piece 12 at the first deformation groove 14 and the third deformation groove 31 thinner and weaker, and is more likely to deform after being subjected to external force, so that the clip 13 can deflect and twist at the third deformation groove 31, and the connecting piece 1 2 can be deformed at the first deformation groove 14, and the relative position between the clip 13 and the clamping block 5 is adjusted to adapt to the shaft discs of the fan impellers of different sizes. The clip 13 is used to assist in fixing the shaft disc of the fan impeller. When the clamping block 5 clamps and fixes the shaft disc under the action of the three-jaw chuck 4, the side of the shaft disc enters from the gap between the clip 13 and the clamping block 5, and then the clip 13 forms a clamping reinforcement on the outside of the shaft disc under the action of the elastic force of the connecting piece 12, and the fixing effect of the clamping block 5 on the shaft disc is enhanced without affecting the processing of the keyway on the shaft disc.

[0045] In this embodiment, if Figures 3 to 5 As shown, the first fixing component includes a rack 2 symmetrically installed in the mounting seat 1 and a fixing frame 16 fixedly connected to the outside of the fixing plate 3, the fixing frame 16 is provided with uniformly distributed first teeth 17, the rack 2 is provided with uniformly distributed second teeth 18, the shapes of the first teeth 17 and the second teeth 18 are adapted to each other, the distance between the racks 2 is greater than the diameter of the outside of the servo motor 15, the fixing frame 16 is located between the servo motor 15 and the bent end 10, the end cross-sections of the first teeth 17 and the second teeth 18 are both trapezoidal, when the fixing When the positions of the fixed plate 3 and the movable seat 11 in the mounting seat 1 are adjusted to the position for splicing with the fan drive shaft, the fixed plate 3 is deflected so that the fixed plate 3 and the mounting seat 1 are parallel to each other. In this process, the fixed plate 3 will drive the fixed frame 16 to deflect together, and then the first tooth 17 on the fixed frame 16 gradually approaches the second tooth 18 on the rack 2 until the first tooth 17 is completely engaged with the second tooth 18, thereby fixing the fixed plate 3 and the movable seat 11 to the mounting seat 1 to ensure the stability of the fixed plate 3 in a horizontal state.

[0046] In this embodiment, if Figures 6 to 11As shown, the second fixing assembly includes a fixing seat 22 fixedly connected to the inside of the mounting seat 1, and connecting plates 7 are movably sleeved at both ends of the fixing seat 22. The connecting plate 7 is slidably connected to the mounting seat 1, and a positioning seat 6 is fixedly connected to the end of the connecting plate 7. A card slot that matches the external shape of the fixing plate 3 is opened on the positioning seat 6. When the fixing plate 3 follows the movable seat 11 to slide to the second fixing assembly and is in a vertical state, the positioning seat 6 can clamp and fix the fixing plate 3 from both sides of the fixing plate 3 through the card slot, maintain the vertical state of the fixing plate 3, and provide convenience for the keyway processing. The opening of the positioning seat 6 on one side facing the outside of the fixing plate 3 is provided with an inclined surface, which can increase the area at the entrance of the card slot and make the width value at the entrance of the card slot greater than the thickness value of the fixing plate 3, so that the positioning seat 6 can pass through the outside of the fixing plate 3 more easily when clamping and fixing the fixing plate 3.

[0047] The connecting plate 7 is L-shaped, and a pull rod 8 is fixedly connected to the outside of the connecting plate 7. A sliding groove 28 matching the shape of the connecting plate 7 is opened in the fixed seat 22, and evenly distributed springs 29 are fixedly connected between the fixed seat 22 and the connecting plate 7. The connecting plate 7 can slide in the sliding groove 28 in the fixed seat 22, and can drive the spring 29 to stretch during the sliding process toward the outside of the mounting seat 1. In the absence of external force, the fixed seat 22 and the connecting plate 7 are in the second matching state. At this time, the position of the positioning seat 6 can clamp and fix the fixed plate 3, so that the fixed plate 3 remains in a vertical state, which is convenient for the keyway processing work. The fixing seat 22 is symmetrically provided with positioning grooves 23, and a receiving groove 27 is provided at one end of the connecting plate 7 located in the fixing seat 22, and an elastic plate 24 is fixedly connected in the receiving groove 27, and a positioning block 25 adapted to the size of the positioning groove 23 is fixedly connected to the elastic plate 24. When it is necessary to unlock the fixing plate 3 in the clamped fixed state, the pull rod 8 outside the connecting plate 7 is pulled to drive the connecting plate 7 and the fixing seat 22 to slide relative to each other, and drive the positioning seat 6 away from the outside of the fixing plate 3 to release the clamping fixation of the fixing plate 3. After that, after the fixing plate 3 is moved out from between the positioning seats 6, the movable seat 11 is driven to move from the upper side of the fixing seat 22. The connecting plate 7 is then moved away from the fixing plate 3, while the pull rod 8 is continuously pulled until the positioning block 25 in the receiving groove 27 on the connecting plate 7 moves to the positioning groove 23. The positioning block 25 rises under the elastic force of the elastic plate 24 and engages with the positioning groove 23 to form a limiting effect on the connecting plate 7. This can prevent the positioning seat 6 from being directly reset after the fixing of the fixing plate 3 is released, so that the connecting plate 7 and the fixing seat 22 are in a first matching state, which facilitates the movement of the fixing plate 3 on the mounting seat 1 and avoids obstruction to the movement of the fixing plate 3 in the mounting seat 1. This provides convenience for the operation of the staff when the key grooves of multiple fan impellers are continuously processed.

[0048] A second deformation groove 30 is provided at the connection between the elastic plate 24 and the connecting plate 7. The second deformation groove 30 is provided so that the structure of the elastic plate 24 at the second deformation groove 30 is thinned and the structural strength is weaker. After being acted upon by an external force, the elastic plate 24 is easily deformed in the second deformation groove 30. When the elastic plate 24 is deformed, it will drive the positioning block 25 to produce a corresponding displacement, so that the positioning block 25 can be stored in the storage groove 27 without interfering with the relative sliding between the connecting plate 7 and the fixed seat 22, and can also drive the positioning block 25 to form a card connection with the positioning groove 23 to achieve locking of the connecting plate 7. A second guide surface 26 is provided at the top of the positioning block 25. The bottom surface of the movable seat 11 is flush with the top of the fixed seat 22, and the bottom of the movable seat 11 is fixedly connected with an extrusion block 20 corresponding to the position of the positioning groove 23. The bottom of the extrusion block 20 is provided with a first guide surface 21 adapted to the shape of the second guide surface 26, so as to carry out continuous keyway processing of the fan impeller and splicing process of the shaft disc and the drive shaft. When the first and second guide surfaces 21 and 26 are in contact with each other, the lateral extrusion force exerted on the positioning block 25 is decomposed, and a downward pressure is exerted on the positioning block 25, so that the elastic plate 24 is deformed at the second deformation groove 30, and the positioning block 25 is driven to be received in the receiving groove 27, so that the limiting and fixing effect of the positioning block 25 and the positioning groove 23 on the connecting plate 7 is released, so that the connecting plate 7 is reset under the elastic force of the spring 29, and the positioning seat 6 is driven to clamp and fix the fixing plate 3 from both sides of the fixing plate 3, so that the state switching of the fixing plate 3 and the fixing operation after the switching are simple and fast.

[0049] The working principle of the technical solution provided by the present invention is as follows:

[0050] When in use, in the initial state, the connecting plate 7 and the fixed seat 22 are in a first mating state. Hold the holding groove on the bent end 10 with your hand, pull the fixed plate 3 to drive the movable seat 11 to slide along the guide rail 9 and the guide groove 19 in the mounting seat 1, and move toward the positioning seat 6. During the movement of the fixed plate 3 and the movable seat 11 toward the positioning seat 6, the movable seat 11 drives the extrusion block 20 to be inserted from the positioning groove 23 to the top of the fixed seat 22, and extrude the positioning block 25 through the extrusion block 20, so that the elastic plate 24 is deformed at the second deformation groove 30, and drives the positioning block 25 to be stored in the storage groove 27, thereby releasing the limiting and fixing effect of the positioning block 25 and the positioning groove 23 on the connecting plate 7.

[0051] After the connecting plate 7 is unlocked, it is reset under the elastic force of the spring 29, and the position between the connecting plate 7 and the fixing seat 22 is converted from the first state to the second state. The connecting plate 7 drives the positioning seat 6 to clamp and fix the fixing plate 3 from both sides of the fixing plate 3, maintaining the vertical state of the fixing plate 3, and putting the shaft disk of the fan impeller with the key groove to be processed into the three-jaw chuck 4. The three-jaw chuck 4 is operated to drive the clamping block 5 to clamp and fix the shaft disk, and the planer on the machine tool is operated to process the key groove on the shaft disk.

[0052] After completing the keyway processing, pull the pull rod 8 outside the connecting plate 7 to cause relative sliding between the connecting plate 7 and the fixed seat 22, and the connecting plate 7 drives the positioning seat 6 to move away from the outside of the fixed plate 3 to release the clamping fixation of the fixed plate 3. Pull the fixed plate 3 again, and after moving the fixed plate 3 out from between the positioning seats 6, the fixed plate 3 drives the movable seat 11 to leave from above the fixed seat 22, and continue to pull the pull rod 8 until the positioning block 25 in the receiving groove 27 on the connecting plate 7 moves to the positioning groove 23. The positioning block 25 rises under the elastic force of the elastic plate 24 and is mutually engaged with the positioning groove 23 to form a limit lock for the connecting plate 7 to prevent the connecting plate 7 from resetting.

[0053] Pull the fixed plate 3 to the position for splicing with the drive shaft of the fan, deflect the fixed plate 3 until the fixed plate 3 and the mounting seat 1 are parallel to each other. In this process, the fixed plate 3 drives the fixed frame 16 to deflect together, so that the first tooth 17 on the fixed frame 16 gradually approaches the second tooth 18 on the rack 2, until the first tooth 17 is completely engaged with the second tooth 18, fix the fixed plate 3 and the movable seat 11 to the mounting seat 1, start the servo motor 15 to drive the three-jaw chuck 4 to rotate as a whole, adjust the position of the keyway on the shaft disk, complete the splicing work between the shaft disk and the drive shaft of the fan, operate the three-jaw chuck 4 again to release the lock of the shaft disk, remove the workpiece that has been processed and spliced, and complete the use process of the entire fan impeller keyway processing auxiliary device.

[0054] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A fan impeller keyway machining auxiliary device, characterized in that: It comprises a mounting seat, which is fixedly mounted on the machine tool by bolts, and a movable seat is sleeved in the mounting seat, a fixed plate is rotatably connected in the movable seat, a three-jaw chuck is assembled on the outside of the fixed plate, three groups of evenly distributed clamping blocks are arranged on the three-jaw chuck, a servo motor is fixedly mounted on a surface of the fixed plate away from the three-jaw chuck, and a driving shaft of the servo motor is fixedly connected to the three-jaw chuck; A reinforcement component, used to assist the clamping block in clamping and fixing the shaft disc of the fan impeller, the reinforcement component being connected to the clamping block; A first fixing component, used for fixing the relative position of the fixing plate and the mounting seat when they are parallel to each other, the first fixing component being connected to the mounting seat and the fixing plate respectively; A second fixing component, used for fixing the relative position of the fixing plate and the mounting seat when they are perpendicular to each other, the second fixing component is connected to the mounting seat; One end of the fixed plate is movably connected to the movable seat via a shaft, and the other end of the fixed plate is fixedly connected to a bent end, the bent end is L-shaped, and a holding groove is provided on the bent end; The first fixing assembly comprises a rack symmetrically mounted in the mounting seat and a fixing frame fixedly connected to the outside of the fixing plate, the fixing frame is provided with uniformly distributed first teeth, the rack is provided with uniformly distributed second teeth, and the shapes of the first teeth and the second teeth are adapted to each other; The distance between the racks is greater than the diameter of the outer portion of the servo motor, the fixing frame is located between the servo motor and the bent end, and the end sections of the first teeth and the second teeth are both trapezoidal; The second fixing assembly comprises a fixing seat fixedly connected to the inside of the mounting seat, connecting plates are movably sleeved at both ends of the fixing seat, the connecting plates are slidably connected to the mounting seat, and a positioning seat is fixedly connected to the end of the connecting plate, and a slot matching the outer shape of the fixing plate is provided on the positioning seat; The connecting plate is L-shaped, and a pull rod is fixedly connected to the outside of the connecting plate. A sliding groove matching the shape of the connecting plate is provided in the fixing seat, and evenly distributed springs are fixedly connected between the fixing seat and the connecting plate. The fixing seat is symmetrically provided with positioning grooves, one end of the connecting plate located in the fixing seat is provided with a receiving groove, an elastic plate is fixedly connected in the receiving groove, and a positioning block matching the size of the positioning groove is fixedly connected to the elastic plate; A second deformation groove is provided at the connection between the elastic plate and the connecting plate, a second guide surface is provided at the top of the positioning block, the bottom surface of the movable seat is flush with the top of the fixed seat, and an extrusion block corresponding to the position of the positioning groove is fixedly connected to the bottom of the movable seat, and a first guide surface adapted to the shape of the second guide surface is provided at the bottom of the extrusion block.

2. The fan impeller keyway machining auxiliary device according to claim 1, characterized in that: The mounting seat is symmetrically provided with guide rails, which are fixedly connected to the inner side wall of the mounting seat and arranged parallel to the mounting seat. The movable seat is provided with guide grooves matching the shape of the guide rails on the outside.

3. The fan impeller keyway machining auxiliary device according to claim 2, characterized in that: The reinforcement component includes a clip fixedly connected to the outside of the clamping block, the clip is fixedly connected to the clamping block via a connecting plate, a first deformation groove is provided on the connecting plate, and a third deformation groove is provided at the connection between the connecting plate and the clip.

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