A rotor rotation press-fitting device

Abstract

The application discloses a kind of rotor rotary press mounting device, it is related to electric drive component assembly technical field, it includes: press machine assembly, servo rotation and floating mechanism and floating grabbing mechanism, floating grabbing mechanism positioning clamping rotor assembly, reducer assembly is positioned by bottom clamp, servo press machine presses down, after the external spline of rotor assembly and the inner spline key tooth key groove of input shaft of reducer assembly are aligned, servo press machine pressure sensor feedback pressure reduces, servo motor starts with rotor assembly low speed counterclockwise rotation, the external spline of rotor assembly and the inner spline key tooth key groove of input shaft of reducer assembly cooperate, in the process of rotation, find the critical point of pressure reduction and press pack in cooperation servo press machine pressure feedback, can avoid product damage, improve production efficiency, more extensive application range, compared with manual assembly, it saves manpower cost, with higher precision, avoid the deviation generated when manual assembly and achieve the purpose of mechanical automation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric drive component assembly, in particular to a rotor rotating press fitting device. BACKGROUND

[0002] In the process of assembling each component of the electric drive, the rotor assembly 4 is as shown in the accompanying drawings, the reducer assembly 5 is as shown in the accompanying drawings, and the press fitting of the rotor assembly 4 and the reducer assembly 5 is a crucial link. In the process of press fitting, in order to ensure the accuracy and achieve the key tooth key groove cooperation between the external spline of the rotor assembly 4 and the internal spline of the input shaft of the reducer assembly 5, the external spline of the rotor assembly 4 and the internal spline of the input shaft of the reducer assembly 5 are cooperated, and then press fitted by the press, so as to ensure the smooth positioning of the rotor assembly 4, as shown in the accompanying drawings, and avoid the risk of mechanical damage of the product in the process of press fitting. Figure 2 Figure 3 Figure 4

[0003] There are two existing technical solutions: one is to manually cooperate the external spline of the rotor assembly 4 with the internal spline of the input shaft of the reducer assembly 5, and then press fit by the press; the other is to design a spline cooperation device on the side of the input shaft of the reducer assembly 5, and cooperate with the press to press fit. The first method has high labor cost, and does not conform to the trend of mechanical automation development; the second method is only suitable for the reducer whose input shaft and output shaft can be linked, and has great limitations. SUMMARY

[0004] The present application conceives a rotor rotating press fitting device to solve the problems in the prior art. The servo motor drives the gear to rotate, and in the process of rotation, the servo press pressure feedback is cooperated to find the critical point of pressure reduction for press fitting, which can avoid product damage and improve production efficiency.

[0005] ​​​The technical scheme adopted in the present application is: a rotor rotating press-fitting device, characterized in that it comprises a press assembly 1, a servo rotating and floating mechanism 2 and a floating grabbing mechanism 3, the press assembly 1 comprises a servo press 1.1, a press connecting seat 1.2 and a press connecting piece 1.3, the press connecting seat 1.2 is threadedly connected with the head of the servo press 1.1, and the output shaft of the servo press 1.1 is fixedly connected with the press connecting piece 1.3; the servo rotating and floating mechanism 2 comprises a servo motor 2.1, a speed reducer 2.2, a connecting bottom plate 2.3, a floating sliding table 2.4, a floating sliding table control switch 2.5, a structure back plate 2.8, a servo press fixing seat 2.9, a large gear 2.10, a small gear 2.11 and a connecting shaft 2.12, the speed reducer 2.2 and the floating sliding table 2.4 are sequentially arranged on the upper surface of the connecting bottom plate 2.3, the output shaft of the speed reducer 2.2 is connected with the inner hole of the small gear 2.11 through a key, the speed reducer 2.2 is connected with the servo motor 2.1, the connecting shaft 2.12 is arranged on the lower surface of the connecting bottom plate 2.3, the connecting shaft 2.12 is fixedly connected with the connecting bottom plate 2.3, the connecting shaft 2.12 is gap-connected with the inner ring of the large gear 2.10, the large gear 2.10 is mesh-connected with the small gear 2.11, the lower linear guide rail of the floating sliding table 2.4 is threadedly connected with the connecting bottom plate 2.3, the structure back plate 2.8 is arranged on the upper portion of the floating sliding table 2.4, the structure back plate 2.8 is threadedly connected with the floating sliding table 2.4, the structure back plate 2.8 is threadedly connected with the servo press fixing seat 2.9, the servo press fixing seat 2.9 is fixedly connected with the press connecting piece 1.3, a square hole is arranged on the structure back plate 2.8, the floating sliding table control switch 2.5 is arranged in the square hole of the structure back plate 2.8, and the floating sliding table control switch 2.5 is threadedly connected with the floating sliding table 2.4; the floating grabbing mechanism 3 comprises a connecting seat 3.1, a spring connecting plate 3.2, a gripper connecting piece 3.3, a spring assembly 3.4, a rotor shaft gripper 3.5 and a rotor assembly connecting seat 3.6, the connecting seat 3.1 is fixedly connected with the spring connecting plate 3.2, the spring connecting plate 3.2 is fixedly connected with the rotor assembly connecting seat 3.6, the spring connecting plate 3.2 is floatingly connected with the gripper connecting piece 3.3 through the spring assembly 3.4, the gripper connecting piece 3.3 is threadedly connected with the rotor shaft gripper 3.5, and the connecting seat 3.1 is threadedly connected with the large gear 2.10.

[0006] Further, the floating slide control switch 2.5 comprises: a compact cylinder 2.51, a floating joint 2.52, a connecting support 2.53, and an intermediate optical shaft 2.7, the connecting support 2.53 is screwed with the floating slide 2.4, the compact cylinder 2.51 is arranged on the upper surface of the connecting support 2.53, the compact cylinder 2.51 is screwed with the connecting support 2.53, the cylinder rod of the compact cylinder 2.51 is connected with the intermediate optical shaft 2.7 through the floating joint 2.52, a through hole is arranged on the connecting bottom plate 2.3 and the floating slide 2.4 respectively, the through hole of the connecting bottom plate 2.3 and the floating slide 2.4 is provided with an oil-free bushing 2.54, and the intermediate optical shaft 2.7 is connected with the oil-free bushing 2.54 in a clearance fit.

[0007] Further, the compact cylinder 2.51 is a Yadea compact cylinder ACE32X10S.

[0008] Further, the intermediate optical shaft 2.7 is made of 45# steel.

[0009] Further, the servo press 1.1 is a servo screw press.

[0010] Further, the servo motor 2.1 is based on the vector control method of the dynamic decoupling mathematical model of the permanent magnet motor.

[0011] Further, the speed reducer 2.2 is a HAD series high-precision flange speed reducer.

[0012] Further, the large gear 2.10 and the small gear 2.11 are made of 45# steel.

[0013] Further, an adjusting connecting block 2.6 is arranged beside the speed reducer 2.2, and the adjusting connecting block 2.6 is screwed with the connecting bottom plate 2.3.

[0014] The rotor rotating press-fitting device has the following advantages:

[0015] The rotor rotating press-fitting device drives rotation by a servo motor and a gear, finds a critical point of pressure reduction in the rotating process by cooperating with the servo press pressure feedback, avoids product damage, improves production efficiency, is no longer limited by whether the input shaft and the output shaft are linked, is a flexible assembly method, can be applied to press-fitting of most spline-matched rotor assemblies and speed reducer assemblies, has a wider application range, saves labor cost compared with manual assembly, has high precision, avoids deviation caused by manual assembly, and achieves the purpose of mechanical automation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional view of a rotor rotating press-fitting device.

[0017] Figure 2 is a three-dimensional view of the rotor assembly;

[0018] Figure 3 is a three-dimensional view of the reducer assembly;

[0019] Figure 4 is a three-dimensional view of the external spline of the rotor assembly and the internal spline keyway of the input shaft of the reducer assembly;

[0020] Figure 5 is Figure 1 a three-dimensional view of the middle part 1;

[0021] Figure 6 is Figure 1 a three-dimensional view of the middle part 2;

[0022] Figure 7 is Figure 1 a three-dimensional view of the middle part 2 from another angle;

[0023] Figure 8 is Figure 3 a sectional view;

[0024] Figure 9 is Figure 1 a three-dimensional view of the middle part 3;

[0025] Figure 10 is Figure 1 a three-dimensional view of the middle part 3 after clamping the part 4;

[0026] In the figure: 1. press assembly, 1.1. servo press, 1.2. press connecting seat, 1.3. press connecting part, 2. servo rotation and floating mechanism, 2.1. servo motor, 2.2. reducer, 2.3. connecting bottom plate, 2.4. floating slide, 2.5. floating slide control switch, 2.51. compact air cylinder, 2.52. floating joint, 2.53. connecting support, 2.54. oil-free bushing, 2.6. adjusting connecting block, 2.7. intermediate light shaft, 2.8. structure back plate, 2.9. servo press fixing seat, 2.10. large gear, 2.11. small gear, 2.12. connecting shaft, 3. floating grabbing mechanism, 3.1. connecting seat, 3.2. spring connecting plate, 3.3. grabber connection, 3.4. spring assembly, 3.5. rotor shaft grabber, 3.6. rotor assembly connecting seat, 4. rotor assembly, 5. reducer assembly. DETAILED DESCRIPTION

[0027] The following will be described in conjunction with the accompanying Figures 1 to 10Further details of the present application are described in the detailed description of the application, in order to make the purpose, technical solutions and advantages of the embodiments clearer, the technical solutions in the embodiments will be described clearly and completely in combination with the accompanying drawings in the embodiments of the present application, the specific embodiments described herein are only used to explain the present application, and are not used to limit the scope of the present application.

[0028] The rotor assembly 4 is shown in Fig. 1, the reducer assembly 5 is shown in Fig. 2, the outer spline of the rotor assembly 4 is matched with the inner spline of the input shaft of the reducer assembly 5, and then the press is pressed to ensure that the rotor assembly 4 is smoothly positioned, as shown in Fig. 3. Figure 2 Figure 3 The rotor assembly 4 is shown in Fig. 1, the reducer assembly 5 is shown in Fig. 2, the outer spline of the rotor assembly 4 is matched with the inner spline of the input shaft of the reducer assembly 5, and then the press is pressed to ensure that the rotor assembly 4 is smoothly positioned, as shown in Fig. 3. Figure 4 The rotor assembly 4 is shown in Fig. 1, the reducer assembly 5 is shown in Fig. 2, the outer spline of the rotor assembly 4 is matched with the inner spline of the input shaft of the reducer assembly 5, and then the press is pressed to ensure that the rotor assembly 4 is smoothly positioned, as shown in Fig. 3.

[0029] The rotor assembly 4 is shown in Fig. 1, the reducer assembly 5 is shown in Fig. 2, the outer spline of the rotor assembly 4 is matched with the inner spline of the input shaft of the reducer assembly 5, and then the press is pressed to ensure that the rotor assembly 4 is smoothly positioned, as shown in Fig. 3. Figure 1 A rotor rotating press assembly, as shown in Fig. 4, comprises a press assembly 1, a servo rotating and floating mechanism 2 and a floating grabbing mechanism 3, the floating grabbing mechanism 3 positions and clamps the rotor assembly 4, and the reducer assembly 5 is positioned by a bottom clamp. Figure 5 The press assembly 1 comprises a servo press 1.1, a press connecting seat 1.2 and a press connecting piece 1.3, the press connecting seat 1.2 is threadedly connected with the head of the servo press 1.1, and the output shaft of the servo press 1.1 is fixedly connected with the press connecting piece 1.3. Figure 6 7 ​​As shown, the servo rotation and floating mechanism 2 includes: servo motor 2.1, reducer 2.2, connecting bottom plate 2.3, floating slide 2.4, floating slide control switch 2.5, structure back plate 2.8, servo press fixed seat 2.9, large gear 2.10, pinion 2.11 and connecting shaft 2.12, reducer 2.2, floating slide 2.4 are sequentially arranged on the upper surface of connecting bottom plate 2.3, the output shaft of reducer 2.2 is connected with the inner hole of pinion 2.11 through key connection, reducer 2.2 is connected with servo motor 2.1, connecting shaft 2.12 is arranged on the lower surface of connecting bottom plate 2.3, connecting shaft 2.12 is fixedly connected with connecting bottom plate 2.3, connecting shaft 2.12 is connected with the inner ring of large gear 2.10 through clearance fit, large gear 2.10 is connected with pinion 2.11 through meshing, the lower layer linear guide rail of floating slide 2.4 is threadedly connected with connecting bottom plate 2.3, structure back plate 2.8 is arranged on the upper part of floating slide 2.4, structure back plate 2.8 is threadedly connected with floating slide 2.4, structure back plate 2.8 is threadedly connected with servo press fixed seat 2.9, servo press fixed seat 2.9 is fixedly connected with press connecting piece 1.3, square hole is arranged on structure back plate 2.8, floating slide control switch 2.5 is arranged in the square hole of structure back plate 2.8, floating slide control switch 2.5 is threadedly connected with floating slide 2.4;

[0030] As shown in the accompanying drawings, Figure 8 As shown, the floating slide control switch 2.5 includes: compact air cylinder 2.51, floating joint 2.52, connecting support 2.53, intermediate optical axis 2.7, connecting support 2.53 is threadedly connected with floating slide 2.4, compact air cylinder 2.51 is arranged on the upper surface of connecting support 2.53, compact air cylinder 2.51 is threadedly connected with connecting support 2.53, the cylinder rod of compact air cylinder 2.51 is connected with intermediate optical axis 2.7 through floating joint 2.52, through holes are respectively arranged on connecting bottom plate 2.3 and floating slide 2.4, oilless bushings 2.54 are arranged in the through holes of connecting bottom plate 2.3 and floating slide 2.4, intermediate optical axis 2.7 is connected with oilless bushing 2.54 through clearance fit.

[0031] As shown in the accompanying drawings, Figure 9 , 10As shown, the floating gripping mechanism 3 comprises a connecting seat 3.1, a spring connecting plate 3.2, a gripper connecting 3.3, a spring assembly 3.4, a rotor shaft gripper 3.5 and a rotor assembly connecting seat 3.6, the connecting seat 3.1 is fixedly connected with the spring connecting plate 3.2, the spring connecting plate 3.2 is fixedly connected with the rotor assembly connecting seat 3.6, the spring connecting plate 3.2 is floatingly connected with the gripper connecting 3.3 through a group of spring assemblies 3.4, the gripper connecting 3.3 is threadedly connected with the rotor shaft gripper 3.5, and the connecting seat 3.1 is threadedly connected with the large gear 2.10.

[0032] A working process of the rotor rotating press-fitting device:

[0033] First, the compact cylinder 2.51 on the floating slide control switch 2.5 is retracted, the intermediate optical shaft 2.7 connected with the compact cylinder 2.51 is lifted, and is disconnected from the connecting bottom plate 2.3, at this time, the floating slide can move in two directions along the slide rail, and the floating slide is opened; the servo press 1.1 drives the servo rotation and floating mechanism 2 and the floating gripping mechanism 3 to descend, the floating gripping mechanism 3 positions and clamps the rotor assembly 4, the reducer assembly 5 is positioned by the bottom clamp, the floating gripping mechanism 3 drives the rotor assembly 4 to descend, until the outer spline of the rotor assembly 4 is aligned with the inner spline key tooth key groove of the input shaft of the reducer assembly 5, the pressure sensor of the servo press 1.1 feeds back the pressure reduction; at this time, the servo motor 2.1 starts to rotate the rotor assembly 4 counterclockwise at a low speed; when the pressure sensor of the servo press 1.1 again feeds back the pressure reduction, that is, the outer spline of the rotor assembly 4 is matched with the inner spline key tooth key groove of the input shaft of the reducer assembly 5, the servo press 1.1 starts to press down, and stops pressing down after a certain value of the servo press 1.1 is pressed down, if there is a large change in force during the pressing down of the servo press 1.1, the servo motor 2.1 can rotate at a low speed, after the pressure is stable, the servo press 1.1 continues to press down, the rotor shaft gripper 3.5 is opened, the servo press 1.1 drives the servo rotation and floating mechanism 2 and the floating gripping mechanism 3 to retract, and returns to the original position; the compact cylinder 2.51 on the floating slide 2.4 control switch 2.5 is extended, the floating slide 2.4 is locked, and the whole operation is completed.

[0034] The above only describes the preferred mode of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A rotor rotation press-fitting device characterized by comprising It includes: The press assembly (1), servo rotation and floating mechanism (2) and floating grab mechanism (3), the press assembly (1) includes: servo press (1.1), press connecting seat (1.2) and press connecting piece (1.3), the press connecting seat (1.2) is connected with servo press (1.1) head screw thread, the output shaft of servo press (1.1) is connected with press connecting piece (1.3) solidly;The servo rotation and floating mechanism (2) includes: servo motor (2.1), speed reducer (2.2), connecting bottom plate (2.3), floating slide (2.4), floating slide control switch (2.5), structure back plate (2.8), servo press fixing seat (2.9), large gear (2.10), pinion (2.11) and connecting shaft (2.12), the speed reducer (2.2) is sequentially arranged on the upper surface of connecting bottom plate (2.3), the output shaft of speed reducer (2.2) passes through connecting bottom plate (2.3) and is connected with the inner hole of pinion (2.11) through flat key cooperation, the speed reducer (2.2) is connected with servo motor (2.1), the connecting shaft (2.12) is arranged on the lower surface of connecting bottom plate (2.3), the connecting shaft (2.12) is connected with connecting bottom plate (2.3) solidly, the connecting shaft (2.12) is connected with the inner ring gap of large gear (2.10), the large gear (2.10) is connected with pinion (2.11) meshing, the lower layer linear guide rail of floating slide (2.4) is connected with connecting bottom plate (2.3) screw thread, the structure back plate (2.8) is arranged on the upper part of floating slide (2.4), the structure back plate (2.8) is connected with floating slide (2.4) screw thread, the structure back plate (2.8) is connected with servo press fixing seat (2.9) screw thread, the servo press fixing seat (2.9) is connected with press connecting piece (1.3) solidly, the square hole is arranged on the structure back plate (2.8), the floating slide control switch (2.5) is arranged in the square hole of structure back plate (2.8), the floating slide control switch (2.5) is connected with floating slide (2.4) screw thread;The floating grab mechanism (3) includes: connecting seat (3.1), spring connecting plate (3.2), grab hand connection (3.3), spring assembly (3.4), rotor shaft grab hand (3.5) and rotor assembly connecting seat (3.6), the connecting seat (3.1) is connected with spring connecting plate (3.2) solidly, the spring connecting plate (3.2) is connected with rotor assembly connecting seat (3.6) solidly, the spring connecting plate (3.2) is connected with grab hand connection (3.3) through a group of spring assembly (3.4) floating, the grab hand connection (3.3) is connected with rotor shaft grab hand (3.5) screw thread, the connecting seat (3.1) is connected with large gear (2.10) screw thread.

2. A rotor swaging device according to claim 1, wherein The floating slide control switch (2.5) comprises a compact cylinder (2.51), a floating joint (2.52), a connecting support (2.53), and an intermediate optical shaft (2.7), the connecting support (2.53) is screwed with the floating slide (2.4), the compact cylinder (2.51) is arranged on the upper surface of the connecting support (2.53), the compact cylinder (2.51) is screwed with the connecting support (2.53), the cylinder rod of the compact cylinder (2.51) is connected with the intermediate optical shaft (2.7) through the floating joint (2.52), the connecting bottom plate (2.3) and the floating slide (2.4) are respectively provided with through holes, the through holes of the connecting bottom plate (2.3) and the floating slide (2.4) are provided with oil-free bushings (2.54), and the intermediate optical shaft (2.7) is connected with the oil-free bushings (2.54) in clearance fit.

3. A device for swaging a rotor in rotation according to claim 2, characterized in that The compact cylinder (2.51) is a Yade compact cylinder ACE32X10S.

4. A device for swaging a rotor in rotation according to claim 2, characterized in that The intermediate optical shaft (2.7) is made of 45 steel.

5. A rotor swaging device according to claim 1, wherein The servo press (1.1) is a servo screw press.

6. A rotor swaging device according to claim 1 wherein, The servo motor (2.1) is based on the vector control method of the dynamic decoupling mathematical model of the permanent magnet motor.

7. A rotor swaging device according to claim 1 wherein, The speed reducer (2.2) is a HAD series high-precision flange speed reducer.

8. A rotor swaging device according to claim 1 wherein, The large gear (2.10) and the small gear (2.11) are made of 45 steel.

9. A rotor rotary pressing device according to claim 1, characterized in that, in The speed reducer (2.2) is provided with an adjusting connecting block (2.6) beside it, and the adjusting connecting block (2.6) is screwed with the connecting bottom plate (2.3).

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