Rotary press-fitting equipment for rotor workpiece

Abstract

The invention discloses rotary press-fitting equipment for a rotor workpiece, and relates to the technical field of rotor assembly. The device comprises a pressing machine and an air cylinder, a lifting sliding table is installed at the output end of the pressing machine, a fixing cylinder is fixedly connected to the lifting sliding table, a rotary driving assembly is installed above the fixing cylinder, the output end of the rotary driving assembly is fixedly connected with a mounting base, and a fixing assembly is detachably installed at the bottom end of the mounting base; and the fixing assembly is detachably connected with the rotor workpiece. Through mutual cooperation of the fixing assembly, the rotation driving assembly and other structures, rotation adjustment can be automatically conducted on a rotor workpiece according to needs in the press-fitting process, the press-fitting precision of the rotor workpiece and a shell workpiece is guaranteed, in addition, the rotating and press-fitting integrated assembly mode is adopted, the installation space is reduced, and the assembly efficiency is improved. And the design cost of equipment for carrying out displacement press-fitting on the workpiece is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of rotor assembly, in particular to a rotary press-assembly device for a rotor workpiece. Background Art

[0002] Modern development has placed higher and higher demands on the automation level of the manufacturing industry. In the field of automated assembly manufacturing technology, press-fitting is one of the most important assembly processes. With the development of the form, the automation requirements for press-fitting are getting higher and higher. In particular, the pressing assembly process has different requirements for the shape, working conditions, precision, and equipment cost of the workpiece. The non-standard equipment used for press-fitting on the market has a simple structure and generally only has simple press-fitting. It cannot be used when encountering working conditions that require key and gear alignment, or other equipment is required to additionally drive the workpiece to rotate and shift. The overall structure is complex and the operation is cumbersome. For this reason, we propose a rotary press-fitting device for rotor workpieces. Summary of the invention

[0003] The object of the present invention is to provide a rotary pressing device for a rotor workpiece, which fixes the rotor by connecting the workpiece by internal expansion, and then uses an integrated assembly method of rotation and pressing to reduce the installation space and reduce the design cost of the press-fitting device that requires the workpiece to be displaced.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotary press-fitting device for a rotor workpiece, applied to the press-fitting of a rotor workpiece, comprising a press and a cylinder, a lifting slide is installed at the output end of the press, a fixing cylinder is fixedly connected to the upper part of the lifting slide, a rotary drive assembly is installed above the fixing cylinder, a mounting seat is fixedly connected to the output end of the rotary drive assembly, a fixing assembly is detachably installed at the bottom end of the mounting seat, and a detachable connection is made between the fixing assembly and the rotor workpiece;

[0005] The output end of the cylinder is fixedly connected with a fixed shaft, the top of the fixed shaft is fixedly connected with a lower push rod, and the lower push rod acts on the rotor workpiece.

[0006] Furthermore, the rotor workpiece includes a rotating shaft, an armature core, an armature winding and a commutator, and a through hole is opened inside the rotating shaft.

[0007] Furthermore, the fixing tube is arranged through the lifting slide, and the fixing tube is installed on the lifting slide by bolts.

[0008] Furthermore, the rotary drive assembly includes a coupling fixed above the fixed cylinder, the top end of the coupling is connected to a reducer, and the connecting end of the reducer is installed with a servo motor.

[0009] Furthermore, a transmission rod is rotatably connected to the interior of the fixed cylinder via a bearing, and the top end of the transmission rod is fixedly connected to the coupling, and the bottom end of the transmission rod is fixedly connected to the mounting seat.

[0010] Furthermore, the fixing assembly includes a top shaft detachably mounted on the bottom end of the mounting seat, a pressure head is slidably connected to the bottom end of the top shaft, and a spring is sleeved on the outer surface of the top shaft, and the spring is located between the pressure head and the mounting seat.

[0011] Furthermore, a mounting groove is provided at the bottom end of the mounting seat, and the top end of the top shaft is clamped in the mounting groove and fixed by a top screw bolt.

[0012] Furthermore, the pressure head includes a thick straight portion, the bottom of the thick straight portion is integrally connected with an inclined portion, the bottom end of the inclined portion is integrally connected with a thin straight portion, and the thin straight portion is arranged in a petal shape, the diameter of the thin straight portion is smaller than the diameter of the shaft through hole, and the thick straight portion is larger than the diameter of the shaft through hole.

[0013] Furthermore, a convex key is fixedly connected to the outer surface of the bottom end of the top shaft, and a vertical key groove matched with the convex key is formed on the inner wall of the pressure head, and the convex key and the vertical key groove are matched with each other.

[0014] Furthermore, the diameter of the lower ejector rod is larger than the diameter of the through hole of the rotor workpiece shaft.

[0015] The present invention has at least the following beneficial effects:

[0016] 1. The present invention can automatically adjust the rotation of the rotor workpiece as needed during the press-fitting process through the cooperation of the fixed components, the rotating drive components and other structures, thereby ensuring the press-fitting accuracy of the rotor workpiece and the housing workpiece. In addition, the integrated rotation and press-fitting assembly method is adopted, which reduces the installation space and the design cost of the press-fitting equipment that needs to displace the workpiece.

[0017] 2. The present invention uses the top shaft, pressure head, spring and other structures to cooperate with each other, and adopts an internal expansion connection method to fix the rotor workpiece, which can effectively avoid damage to the rotor workpiece.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a front view schematic diagram of the overall structure of the present invention;

[0021] Figure 3 It is a side view schematic diagram of the overall structure of the present invention;

[0022] Figure 4 is a three-dimensional schematic diagram of a rotary drive assembly of the present invention;

[0023] Figure 5 is a top view schematic diagram of the rotary drive assembly of the present invention;

[0024] Figure 6 is a cross-sectional schematic diagram of a rotary drive assembly of the present invention;

[0025] Figure 7 For the present invention Figure 6 A magnified view of the structure at center A;

[0026] Figure 8 It is a three-dimensional schematic diagram of the rotor workpiece structure of the present invention;

[0027] Fig. 9 It is a three-dimensional schematic diagram of the pressure head structure of the present invention.

[0028] Reference numerals:

[0029] 1. Press; 2. Cylinder; 3. Lifting slide; 4. Fixed cylinder; 5. Rotary drive assembly; 51. Coupling; 52. Reducer; 53. Servo motor; 6. Mounting seat; 7. Fixed assembly; 71. Top shaft; 72. Press head; 721. Thick straight portion; 722. Inclined portion; 723. Thin straight portion; 73. Spring; 74. Mounting groove; 8. Fixed shaft; 9. Lower ejector rod; 10. Rotor workpiece; 11. Transmission rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0031] See also Figure 1-Figure 9 The present invention provides a technical solution: a rotary press-fitting device for a rotor workpiece 10, which is applied to the press-fitting of the rotor workpiece 10, comprises a press machine 1 and a cylinder 2, a lifting slide 3 is installed at the output end of the press machine 1, a fixing cylinder 4 is fixedly connected to the upper part of the lifting slide 3, a rotary drive component 5 is installed above the fixing cylinder 4, a mounting seat 6 is fixedly connected to the output end of the rotary drive component 5, a fixing component 7 is detachably installed at the bottom end of the fixing seat 6, and a detachable connection is made between the fixing component 7 and the rotor workpiece 10;

[0032] The output end of the cylinder 2 is fixedly connected with a fixed shaft 8 , the top of the fixed shaft 8 is fixedly connected with a lower push rod 9 , and the lower push rod 9 acts on the rotor workpiece 10 .

[0033] According to the technical solution of this embodiment, the rotor workpiece 10 includes a rotating shaft, an armature core, an armature winding and a commutator, and a through hole is opened inside the rotating shaft. It should be noted that when the rotor workpiece 10 is pressed, a shell workpiece is also provided at other workstations, and the rotor workpiece 10 needs to be pressed into the shell workpiece.

[0034] With respect to the technical solution of this embodiment, the fixed cylinder 4 is arranged through the lifting slide 3, and the fixed cylinder 4 is installed on the lifting slide 3 by bolts. It should be noted that the press 1 is fixed on an external operating device (not shown in the figure). Starting the press 1 can drive the lifting slide 3 to move up and down, thereby driving the rotating drive component 5 and the fixed component 7 to move downward, thereby providing downward pressure on the rotor workpiece 10.

[0035] According to the technical solution of this embodiment, the rotary drive assembly 5 includes a coupling 51 fixed above the fixed cylinder 4, the top of the coupling 51 is connected to a reducer 52, the connecting end of the reducer 52 is installed with a servo motor 53, and the interior of the fixed cylinder 4 is rotatably connected to a transmission rod 11 through a bearing, the top of the transmission rod 11 is fixedly connected to the coupling 51, and the bottom of the transmission rod 11 is fixedly connected to the mounting seat 6. The servo motor 53 is started to drive the reducer 52 to rotate, and after the reducer 52 reduces the speed, it will drive the coupling 51 to rotate, that is, the transmission rod 11 can be driven to rotate through the coupling 51. When the transmission rod 11 rotates, it can drive the mounting seat 6 and the fixed assembly 7 to rotate, thereby rotating the fixed rotor workpiece 10, so that the spline on the rotor workpiece 10 rotates to align with the spline groove on the shell workpiece.

[0036] According to the technical solution of this embodiment, the fixing assembly 7 includes a top shaft 71 detachably mounted on the bottom end of the mounting seat 6, the bottom end of the top shaft 71 is slidably connected with a pressure head 72, and the outer surface of the top shaft 71 is sleeved with a spring 73, the spring 73 is located between the pressure head 72 and the mounting seat 6, and the elastic potential energy provided by the spring 73 can drive the top shaft 71 and the pressure head 72 to reset, so that the top shaft 71 stops squeezing the pressure head 72.

[0037] Furthermore, a mounting groove 74 is provided at the bottom end of the mounting seat 6, and the top end of the top shaft 71 is clamped in the mounting groove 74 and fixed by a top screw bolt. A top screw hole is provided on the upper end side wall of the top shaft 71, and a through hole is provided on the side wall of the mounting groove 74 that is aligned with the top screw hole. The through hole is used to facilitate the passage of the top screw. The top screw is passed through the through hole and screwed into the top screw hole, so that the top shaft 71 can be detachably installed on the mounting seat 6. When the mounting seat 6 rotates with the transmission rod 11, the mounting seat 6 will also drive the top shaft 71 and the pressure head 72 to rotate accordingly.

[0038] It should be noted that a cam is fixedly connected to the outer surface of the bottom end of the top shaft 71, and a vertical keyway matched with the cam is opened on the inner wall of the pressure head 72. The cam and the vertical keyway are matched with each other. The set cam and the vertical keyway can enable vertical sliding between the top cover and the pressure head 72, and because the cam is confined in the vertical keyway, when the top shaft 71 rotates, the pressure head 72 can rotate accordingly, and the top shaft 71 and the pressure head 72 will not separate.

[0039] Furthermore, the pressing head 72 includes a thick straight portion 721, the bottom of the thick straight portion 721 is integrally connected with an inclined portion 722, the bottom end of the inclined portion 722 is integrally connected with a thin straight portion 723, and the thin straight portion 723 is arranged in a petal shape, the diameter of the thin straight portion 723 is smaller than the diameter of the shaft through hole, and the thick straight portion 721 is larger than the diameter of the shaft through hole. When the rotor workpiece 10 needs to be fixed, the rotor workpiece 10 is first moved to a specified position with the help of an external manipulator device, and then the press machine 1 is started to drive the lifting slide 3 to move downward, which can drive the rotation drive component 5 and the fixing component 7 to move with When the top shaft 71 moves downward, the thin straight portion 723 of the pressure head 72 will extend into the through hole of the rotating shaft, and the inclined portion 722 will be stuck at the end of the through hole. As the top shaft 71 continues to move downward, the top shaft 71 will squeeze the thin straight portion 723, causing the thin straight portion 723 to expand outward, thereby expanding and fixing the rotor workpiece 10 from the inside of the through hole. At the same time, the cylinder 2 located at the bottom of the rotor workpiece 10 will also extend to drive the fixed shaft 8 and the lower push rod 9 to move upward, thereby tightening the lower end of the rotating shaft, thereby applying an upward force to the rotor workpiece 10, which is convenient for supporting the rotor workpiece 10.

[0040] Furthermore, the diameter of the lower push rod 9 is larger than the diameter of the through hole of the rotating shaft of the rotor workpiece 10, so as to prevent the lower push rod 9 from getting stuck in the rotating shaft and failing to play an effective supporting role.

[0041] The use principle and process of the present invention are as follows: when the rotor workpiece 10 needs to be press-fitted, the rotor workpiece 10 is first moved to the specified position with the help of an external manipulator device, and then the press machine 1 is started to drive the lifting slide 3 to move downward, which can drive the rotary drive component 5 and the fixed component 7 to move downward. At this time, the thin straight portion 723 of the pressure head 72 in the fixed component 7 will extend into the through hole of the rotating shaft, and the inclined portion 722 is stuck at the end of the through hole. As the top shaft 71 continues to move downward, the top shaft 71 will squeeze the thin straight portion 723, so that the thin straight portion 723 expands outward, and the rotor workpiece 10 can be expanded and fixed from the inside of the through hole. At the same time, the cylinder 2 located at the bottom of the rotor workpiece 10 will also extend to drive the fixed shaft 8 and the lower push rod 9 to move upward, and tighten the lower end of the rotating shaft, thereby The rotor workpiece 10 is supported. After the rotor workpiece 10 is fixed, the rotor workpiece 10 is moved to the top of the shell workpiece to be pressed with the help of external equipment, and the press machine 1 is started again to drive the lifting slide 3 and the rotor workpiece 10 to move downward into the shell workpiece, and then the servo motor 53 is started to drive the reducer 52 to rotate. After the reducer 52 is decelerated, the coupling 51 is driven to rotate, and the transmission rod 11 can be driven to rotate through the coupling 51. When the transmission rod 11 rotates, it will drive the mounting seat 6 and the fixing component 7 to rotate, thereby rotating the fixed rotor workpiece 10, so that the spline on the rotor workpiece 10 rotates to align with the spline groove on the shell workpiece. When the alignment operation is completed, the rotor workpiece 10 is driven downward by the press machine 1 and the lifting slide 3 to complete the entire pressing operation.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. When an element is referred to as being "assembled on", "installed on", "fixed on" or "set on" another element, it can be directly on the other element or there can also be a centered element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a centered element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and are not intended to be the only implementation method.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A rotary press-fitting device for a rotor workpiece, used for press-fitting a rotor workpiece (10), comprising a press (1) and a cylinder (2), characterized in that: The output end of the press (1) is provided with a lifting slide (3), the upper portion of the lifting slide (3) is fixedly connected with a fixing cylinder (4), a rotating drive assembly (5) is installed above the fixing cylinder (4), the output end of the rotating drive assembly (5) is fixedly connected with a mounting seat (6), a fixing assembly (7) is detachably mounted at the bottom end of the mounting seat (6), and the fixing assembly (7) is detachably connected to the rotor workpiece (10); The output end of the cylinder (2) is fixedly connected to a fixed shaft (8), the top of the fixed shaft (8) is fixedly connected to a lower push rod (9), and the lower push rod (9) acts on the rotor workpiece (10).

2. A rotary pressing device for a rotor workpiece (10) according to claim 1, characterized in that: The rotor workpiece (10) comprises a rotating shaft, an armature core, an armature winding and a commutator, and a through hole is provided inside the rotating shaft.

3. A rotary pressing device for a rotor workpiece (10) according to claim 2, characterized in that: The fixing tube (4) is arranged through the lifting slide (3), and the fixing tube (4) is mounted on the lifting slide (3) by means of bolts.

4. A rotary pressing device for a rotor workpiece (10) according to claim 2, characterized in that: The rotary drive assembly (5) comprises a coupling (51) fixed above the fixed cylinder (4), the top end of the coupling (51) is connected to a reducer (52), and the connection end of the reducer (52) is installed with a servo motor (53).

5. A rotary pressing device for a rotor workpiece (10) according to claim 4, characterized in that: The interior of the fixed cylinder (4) is rotatably connected to a transmission rod (11) via a bearing, and the top end of the transmission rod (11) is fixedly connected to a coupling (51), and the bottom end is fixedly connected to a mounting seat (6).

6. A rotary pressing device for a rotor workpiece (10) according to claim 5, characterized in that: The fixing assembly (7) comprises a top shaft (71) detachably mounted on the bottom end of the mounting seat (6); the bottom end of the top shaft (71) is slidably connected to a pressure head (72); and a spring (73) is sleeved on the outer surface of the top shaft (71); the spring (73) is located between the pressure head (72) and the mounting seat (6).

7. A rotary pressing device for a rotor workpiece (10) according to claim 6, characterized in that: The bottom end of the mounting seat (6) is provided with a mounting groove (74), and the top end of the top shaft (71) is clamped in the mounting groove (74) and fixed by a top screw bolt.

8. A rotary pressing device for a rotor workpiece (10) according to claim 7, characterized in that: The pressure head (72) comprises a thick straight portion (721), the bottom of the thick straight portion (721) is integrally connected with an inclined portion (722), the bottom end of the inclined portion (722) is integrally connected with a thin straight portion (723), and the thin straight portion (723) is arranged in a petal shape, the diameter of the thin straight portion (723) is smaller than the diameter of the shaft through hole, and the thick straight portion (721) is larger than the diameter of the shaft through hole.

9. A rotary pressing device for a rotor workpiece (10) according to claim 8, characterized in that: A convex key is fixedly connected to the outer surface of the bottom end of the top shaft (71), and a vertical key slot matching the convex key is provided on the inner wall of the pressure head (72), and the convex key and the vertical key slot are matched with each other.

10. A rotary pressing device for a rotor workpiece (10) according to claim 9, characterized in that: The diameter of the lower push rod (9) is larger than the diameter of the through hole of the rotating shaft of the rotor workpiece (10).

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