Alignment device for motor assembly

Abstract

The utility model relates to the field of motor assembly, in particular to an alignment device for motor assembly, which comprises an assembly bottom plate, a power cylinder is fixedly arranged on the assembly bottom plate, an object placing cylinder for placing a stator assembly is fixedly arranged on the assembly bottom plate at the side part of the power cylinder, and an alignment mechanism capable of transferring the stator assembly is arranged on the power cylinder. A limiting cylinder capable of containing a rotor assembly is arranged on the side portion of the combined installation bottom plate, and the stator assembly in the object containing cylinder is transferred to the rotor assembly in the limiting cylinder through an alignment mechanism. According to the alignment device for motor assembly, automatic alignment and combination of the stator assembly and the rotor assembly can be achieved, the situation that fragile parts on the stator assembly and the rotor assembly collide with each other, follow-up long-term use is affected is avoided, and meanwhile the assembly efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the field of motor assembly, in particular to a positioning device for motor assembly. Background Art

[0002] During the production and assembly of large electric motors, the rotor and stator assemblies must be assembled. The existing assembly method involves manually directing a crane to assemble the rotor and stator assemblies. Due to the numerous fragile components in the stator and rotor assemblies, assembly requires repeated confirmation and adjustment of the relative positions of the rotor and stator assemblies, resulting in low assembly efficiency and a high risk of collisions, which can affect subsequent long-term use. Therefore, overcoming these technical issues and drawbacks has become a key challenge. Utility Model Content

[0003] The purpose of the invention of the present utility model is to overcome the defects described in the background technology, thereby realizing a positioning device for motor assembly, which can realize automatic positioning and assembly between the stator assembly and the rotor assembly, avoid collision between fragile parts on the stator assembly and the rotor assembly, and affect subsequent long-term use, while increasing assembly efficiency.

[0004] To achieve the above-mentioned object, the technical solution of the present utility model is: a positioning device for motor assembly, comprising a mounting base. A power cylinder is fixedly mounted on the mounting base, and a storage cylinder for placing a stator assembly is fixedly mounted on the mounting base on the side of the power cylinder. The power cylinder is provided with a positioning mechanism for transferring the stator assembly, and a limiting cylinder is provided on the side of the mounting base for placing a rotor assembly. The positioning mechanism is used to transfer the stator assembly in the storage cylinder to the rotor assembly in the limiting cylinder.

[0005] In the above-mentioned motor assembly alignment device, the power cylinder and the storage cylinder are both vertically arranged on the top of the assembly base plate, and both the power cylinder and the storage cylinder are open at the top, making it convenient to place the stator assembly into the storage cylinder when assembling the motor.

[0006] In the aforementioned motor assembly alignment device, the alignment mechanism includes a first vertical cylinder fixed vertically within the power cylinder. The output end of the first vertical cylinder is located at the top, and a rotating cylinder is fixed at its top. This serves as a power source to transfer the stator assembly, thereby achieving automated assembly and improving the alignment accuracy of the stator and rotor assemblies during assembly.

[0007] A bracket is vertically installed on the side of the power cylinder. The top of the bracket is fixedly installed with the output end of the rotary cylinder. The bottom of the bracket is fixedly installed with a support ring that is mounted on the power cylinder. The support ring is mounted on the power cylinder to limit the bracket's position and prevent it from tilting. The bottom of the bracket on the opposite side of the support ring is fixedly installed with a positioning ring that can be mounted on the storage cylinder. The positioning ring is used to fine-tune the position of the bracket to ensure alignment accuracy. A lifting clamping unit is installed on the bracket above the positioning ring.

[0008] In the aforementioned motor assembly alignment device, the clamping unit comprises a liftable clamping ring mounted on a bracket above the positioning ring. Clamping plates are mounted on opposite sides of the inner wall of the clamping ring, each capable of sliding relative to the other. Clamping washers are fixedly mounted on opposite ends of the clamping plates. Second vertical hydraulic cylinders are fixedly mounted on opposite sides of the outer wall of the clamping ring. The output ends of the second vertical hydraulic cylinders extend through the side walls of the clamping ring and are fixed to the corresponding clamping plates.

[0009] A vertically extending slot is defined in the bracket on the same side of the positioning ring. A lead screw is installed within the slot for vertical rotation, with its tip extending through the top of the bracket. The lead screw extends through the clamping ring and is threadedly connected to it. A motor is fixed to the top of the bracket to drive the lead screw. A supporting unit secures and raises the stator assembly within the storage tube, facilitating its subsequent transfer and assembly.

[0010] In the aforementioned motor assembly alignment device, the top end of the power cylinder is fixed with two fixing blocks that abut against the sides of the top end of the bracket. A first pressure sensor is fixed to one end of each fixing block facing the bracket. This can detect the bracket's rotational limit, facilitating subsequent control of the bracket's rotation and increasing assembly accuracy.

[0011] In the aforementioned motor assembly alignment device, the limiting cylinder is removably mounted on the side of the assembly base and has an open top. A bearing supports a coaxially mounted support plate within the limiting cylinder, which defines a limiting cavity. A central axial hole extends vertically through the support plate, extending through the top of the limiting cavity. The rotor shaft can be inserted into the hole to limit its position and ensure the verticality of the rotating shaft.

[0012] In the aforementioned motor assembly alignment device, two relatively slidable limiting rods are horizontally positioned within the limiting cavity. Two third vertical hydraulic cylinders are fixedly positioned within the limiting cavity, each driving a corresponding limiting rod. A second pressure sensor is fixedly positioned between the limiting rods and the third vertical hydraulic cylinders. This provides secondary positioning of the rotor shaft and simultaneously detects the verticality of the shaft, ensuring proper verticality during rotor assembly.

[0013] Compared with the prior art, the motor assembly alignment device of the present invention has at least the following beneficial effects:

[0014] The alignment device for motor assembly of the present invention comprises an assembly base plate, on which a power cylinder and a storage cylinder are fixedly arranged, and an alignment mechanism for shifting the stator assembly and a limiting cylinder for placing the rotor assembly are also provided. The assembly base plate can realize automatic alignment and assembly between the stator assembly and the rotor assembly, avoid collisions between fragile parts on the stator assembly and the rotor assembly, which would affect subsequent long-term use, and at the same time increase assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the motor assembly alignment device of the utility model;

[0016] Figure 2 This is a schematic diagram of the position of the rotary cylinder of the motor assembly alignment device of the utility model;

[0017] Figure 3 This is a schematic diagram of the position of the limiting cavity of the positioning device for motor assembly of the present utility model;

[0018] Figure 4 This is a motor assembly alignment device of the utility model Figure 2 Magnified view of area A in center.

[0019] In the figure: 1. Assembly base plate; 2. Power cylinder; 3. Storage cylinder;

[0020] 4. Alignment mechanism; 41. First vertical oil cylinder; 42. Rotary oil cylinder; 43. Bracket; 44. Support ring; 45. Positioning ring;

[0021] 46. ​​Clamping unit; 461. Clamping ring; 462. Clamping plate; 463. Clamping gasket; 464. Second vertical oil cylinder; 465. Moving groove; 466. Lead screw; 467. Motor;

[0022] 47. Fixed block; 48. First pressure sensor;

[0023] 5. Limiting cylinder; 6. Bearing; 7. Load-bearing plate; 8. Limiting cavity; 9. Shaft hole; 10. Limiting rod; 11. Third vertical oil cylinder; 12. Second pressure sensor. DETAILED DESCRIPTION

[0024] The following is a more detailed description of the motor assembly alignment device of the present invention with reference to the accompanying drawings and through specific implementations.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] See also Figures 1-4 The alignment device for assembling the motor 467 of this embodiment can realize the automatic alignment and assembly between the stator assembly and the rotor assembly, avoid collisions between the fragile parts on the stator assembly and the rotor assembly, and affect the subsequent long-term use, while increasing the assembly efficiency. In this embodiment, it mainly includes an assembly base plate 1, on which a power cylinder 2 is fixedly provided, and a storage cylinder 3 for placing the stator assembly is fixedly provided on the assembly base plate 1 on the side of the power cylinder 2. The power cylinder 2 and the storage cylinder 3 are both vertically arranged at the top of the assembly base plate 1, and both the power cylinder 2 and the storage cylinder 3 are open-top structures. The stator assembly is vertically placed in the storage cylinder 3 by means of transportation equipment such as a crane, and the opening of the stator assembly is facing downward. A control module is also provided.

[0027] To transfer the stator assembly. Figure 1 and Figure 2 In this embodiment, the power cylinder 2 is provided with a positioning mechanism 4 for transferring the stator assembly. The positioning mechanism 4 includes a first vertical cylinder 41 fixed vertically inside the power cylinder 2. The output end of the first vertical cylinder 41 is located at the top and a rotating cylinder 42 is fixed at its top. The first vertical cylinder 41 and the rotating cylinder 42 are centrally controlled by the control module. The control module controls the operation of the first vertical cylinder 41 and the vertical lifting of the rotating cylinder 42. The control module also controls the operation of the rotating cylinder 42 to rotate the stator assembly, thereby transferring the stator assembly and realizing automated assembly.

[0028] A bracket 43 is vertically provided on the side of the power cylinder 2. The top of the bracket 43 is fixedly provided with the output end of the rotating cylinder 42. The bottom end of the bracket 43 is fixedly provided with a support ring 44 mounted on the power cylinder 2. When the rotating cylinder 42 is vertically raised or lowered, the bracket 43 drives the support ring 44 to rise or fall on the power cylinder 2, and at the same time limits the position of the bracket 43 to prevent the bracket 43 from tilting. A positioning ring 45 that can be mounted on the storage cylinder 3 is fixedly provided at the bottom end of the bracket 43 on the opposite side of the support ring 44. The inner wall of the bottom end of the positioning ring 45 is an outward-inclined bevel. When the rotating cylinder 42 is vertically raised or lowered, the bracket 43 drives the positioning ring 45 to rise or fall on the storage cylinder 3. At the same time, the bevel can be used to fine-tune the position of the bracket 43 during descent, thereby increasing the alignment accuracy when the stator assembly and the rotor assembly are assembled.

[0029] In order to clamp the stator assembly. In this embodiment, see Figure 1 、 Figure 2 and Figure 4 A liftable clamping unit 46 is provided on the bracket 43 above the positioning ring 45. The clamping unit 46 includes a liftable clamping ring 461 provided on the bracket 43 above the positioning ring 45. Relatively slidable clamping plates 462 are provided on opposite sides of the inner wall of the clamping ring 461, and clamping gaskets 463 are fixedly provided on opposite ends of the clamping plates 462. Second vertical cylinders 464 are fixedly provided on opposite sides of the outer wall of the clamping ring 461, and the output ends of the second vertical cylinders 464 pass through the side walls of the clamping ring 461 and are fixed to the corresponding clamping plates 462. The second vertical cylinders 464 are centrally controlled by the control module. When the stator assembly needs to be transferred, the second vertical cylinder 464 can be controlled by the control module to operate, so that the clamping plates 462 move relatively, thereby limiting the stator assembly through the clamping gaskets 463.

[0030] A vertically extending slot 465 is formed in the bracket 43 on the same side as the positioning ring 45. A lead screw 466 is vertically and rotatably disposed within this slot 465. The top end of this lead screw 466 extends through the top of the bracket 43, penetrates the clamping ring 461, and is threadedly connected to the clamping ring 461. A motor 467 is fixed to the top of the bracket 43 to drive the lead screw 466. This motor 467 is centrally controlled by a control module. The control module controls the operation of the motor 467, rotating the lead screw 466 and thereby raising and lowering the clamping ring 461. This facilitates the placement and clamping of the stator assembly.

[0031] The top of the power cylinder 2 is fixed with two fixing blocks 47 that can abut the sides of the top of the bracket 43. A first pressure sensor 48 is fixed to the end of the fixing block 47 facing the bracket 43. The first pressure sensor 48 provides feedback to the control module. The first pressure sensor 48 can detect the rotation limit position of the bracket 43 and provide feedback to the control module, facilitating subsequent control of the bracket 43 rotation and improving assembly accuracy.

[0032] To ensure the verticality of the rotor assembly. Figure 3The side of the assembly base 1 is provided with a limiting cylinder 5 for placing the rotor assembly. The limiting cylinder 5 is detachably provided on the side of the assembly base 1 and has an open top structure. A bearing plate 7 is coaxially rotatably provided inside the limiting cylinder 5 via a bearing 6. A convex plate is also provided at the bottom end of the bearing plate 7. A limiting cavity 8 is provided inside the limiting cylinder 5. An axial hole 9 is provided in the middle of the bearing plate 7, which passes through the top of the limiting cavity 8. During assembly, the rotor assembly is vertically placed into the limiting cylinder 5 using transportation equipment such as a crane. At this time, the rotor shaft is vertically inserted into the axial hole 9 for limiting. To ensure the verticality of the rotating shaft, the position of the middle part of the rotor assembly is raised by the convex plate, so that the stator assembly can be accessed as much as possible during subsequent assembly. Two limiting rods 10 that can slide relative to each other are horizontally provided inside the limiting cavity 8. Two third vertical oil cylinders 11 are fixedly provided horizontally inside the limiting cavity 8, which respectively drive the corresponding limiting rods 10 to move. The third vertical oil cylinders 11 are centrally controlled by the control module. A second pressure sensor 12 is fixedly mounted between the limiting rod 10 and the third vertical cylinder 11. This second pressure sensor 12 provides feedback to the control module. After the rotor shaft is inserted into the shaft hole 9, the control module controls the third vertical cylinder 11 to operate, causing the limiting rod 10 to clamp the rotor shaft. This provides a secondary limit for the rotor shaft. Simultaneously, the rotor assembly can be rotated via the bearing 6, and the second pressure sensor 12 is used to check the verticality of the rotating shaft, ensuring the verticality of the rotor assembly during assembly.

[0033] The method of using the positioning device for assembling the motor 467 of the utility model is as follows: First, before the stator assembly and the rotor assembly are assembled, the motor 467 is controlled by the control module to work, drive the screw 466 to rotate, and move the clamping ring 461 upward to facilitate the subsequent placement of the stator assembly into the storage tube 3. The limiting tube 5 is fixed to the assembly base 1 by bolts. The stator assembly is placed vertically into the storage tube 3 by means of transportation equipment such as a crane, at which time the opening of the stator assembly faces downward. Then, the rotor assembly is placed vertically into the limiting tube 5 by means of transportation equipment such as a crane, and at this time the rotor shaft is vertically inserted into the shaft hole 9 for limiting, thereby ensuring the verticality of the rotating shaft. The position of the middle part of the rotor assembly is raised by the convex plate, so that the interior of the stator assembly can be entered as much as possible during subsequent assembly. After the rotor shaft is inserted into the shaft hole 9, the third vertical oil cylinder 11 is controlled to work by the control module, so that the limiting rod 10 clamps the rotor shaft. Thus, the rotor shaft is limited for a second time. At the same time, the rotor assembly can be rotated through the bearing 6, and the verticality of the rotating shaft can be detected in conjunction with the second pressure sensor 12 to ensure the verticality of the rotor assembly when it is assembled.

[0034] During the assembly operation, the motor 467 is controlled by the control module to rotate the lead screw 466, thereby causing the lowering sleeve of the clamping ring 461 to be set on the stator assembly. The second vertical cylinder 464 is controlled by the control module to move the clamping plate 462 relative to each other, thereby limiting the stator assembly through the clamping gasket 463. The first vertical cylinder 41 is controlled by the control module to move vertically up and down the rotary cylinder 42. At this time, the bracket 43 drives the support ring 44 to move upward on the power cylinder 2, and the bracket 43 drives the positioning ring 45 to move upward on the storage cylinder 3. The clamping ring 461 drives the stator assembly upward through the clamping plate 462. In this process, the support ring 44 is used to limit the bracket 43 to prevent the bracket 43 from tilting.

[0035] The control module controls the rotary cylinder 42 to rotate the stator assembly, thereby rotating the stator assembly toward the limiting cylinder 5. At this time, the position of the bracket 43 is detected by the first pressure sensor 48 and fed back to the control module. When the stator assembly rotates to directly above the rotor assembly, the control module controls the rotary cylinder 42 to stop working based on the signal fed back by the first pressure sensor 48, and controls the first vertical cylinder 41 to move the stator assembly downward and fit it onto the rotor assembly. During this process, the beveled edge below the positioning ring 45 can be used to abut against the limiting cylinder 5 when the stator assembly descends, thereby fine-tuning the position of the bracket 43 and increasing the alignment accuracy when the stator and rotor assemblies are assembled.

[0036] After the assembly is complete, the limiting cylinder 5 can be disassembled and the assembled stator and rotor assemblies can be moved to another location and removed. Then, all parts are returned to their original positions. During this process, the position of the bracket 43 is detected by the first pressure sensor 48, so that the positioning ring 45 is located directly above the storage cylinder 3.

[0037] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the present invention belongs. The use of "one" or "an" and other similar words in the specification and claims of this application does not necessarily indicate a quantitative limitation. "Include" or "comprising" and other similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0038] The exemplary implementation of the present invention is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present invention, various variations and modifications can be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the present invention can be made without exceeding the scope of protection of the present invention.

Claims

1. A motor assembly alignment device, characterized in that: The invention comprises a combined base plate (1), a power cylinder (2) is fixedly provided on the combined base plate (1), a storage cylinder (3) for storing a stator assembly is fixedly provided on the combined base plate (1) at the side of the power cylinder (2), a positioning mechanism (4) for transferring the stator assembly is provided on the power cylinder (2), a limiting cylinder (5) for storing a rotor assembly is provided at the side of the combined base plate (1), and the stator assembly in the storage cylinder (3) is transferred to the rotor assembly in the limiting cylinder (5) through the positioning mechanism (4).

2. The motor assembly alignment device according to claim 1, characterized in that: The power cylinder (2) and the storage cylinder (3) are both vertically arranged on the top of the combined base plate (1), and both the power cylinder (2) and the storage cylinder (3) are top-opening structures.

3. The motor assembly alignment device according to claim 2, characterized in that: The alignment mechanism (4) comprises a first vertical oil cylinder (41) vertically fixedly arranged inside the power cylinder (2), the output end of the first vertical oil cylinder (41) is located at the top and a rotating oil cylinder (42) is fixedly arranged at the top end thereof; A bracket (43) is vertically provided on the side of the power cylinder (2), the top end of the bracket (43) is fixedly provided with the output end of the rotary oil cylinder (42), the bottom end of the bracket (43) is fixedly provided with a support ring (44) sleeved on the power cylinder (2), the bottom end of the bracket (43) on the opposite side of the support ring (44) is fixedly provided with a positioning ring (45) sleeved on the storage cylinder (3), and a lifting clamping unit (46) is provided on the bracket (43) above the positioning ring (45).

4. The motor assembly alignment device according to claim 3, characterized in that: The clamping unit (46) includes a clamping ring (461) that can be lifted and lowered and is arranged on a bracket (43) above the positioning ring (45); clamping plates (462) that can slide relatively are arranged on opposite sides of the inner wall of the clamping ring (461); clamping gaskets (463) are fixedly arranged on opposite ends of the clamping plates (462); second vertical oil cylinders (464) are fixedly arranged on opposite sides of the outer wall of the clamping ring (461); output ends of the second vertical oil cylinders (464) pass through the side walls of the clamping ring (461) and are fixedly arranged on the corresponding clamping plates (462); A movable groove (465) is vertically provided on the bracket (43) on the same side of the positioning ring (45), and a screw (466) is vertically rotated inside the movable groove (465). The top end of the screw (466) passes through the top end of the bracket (43), and the screw (466) passes through the clamping ring (461) and is threadedly connected to the clamping ring (461). A motor (467) for driving the screw (466) to rotate is fixedly provided at the top end of the bracket (43).

5. The motor assembly alignment device according to claim 3, characterized in that: Two fixing blocks (47) that can abut against the side portions of the top of the bracket (43) are fixedly provided at the top of the power cylinder (2); a first pressure sensor (48) is fixedly provided at one end of the fixing block (47) facing the bracket (43).

6. The motor assembly alignment device according to claim 1, characterized in that: The limiting cylinder (5) is detachably arranged on the side of the assembled base plate (1) and has a top-opening structure. A bearing plate (7) is coaxially rotatably arranged inside the limiting cylinder (5) via a bearing (6). A limiting cavity (8) is provided inside the limiting cylinder (5). An axial hole (9) running through the upper and lower parts of the bearing plate (7) is provided in the middle of the limiting cylinder (5). The axial hole (9) passes through the top of the limiting cavity (8).

7. The motor assembly alignment device according to claim 6, characterized in that: Two relatively slidable limiting rods (10) are horizontally arranged inside the limiting cavity (8), two third vertical oil cylinders (11) are fixedly arranged horizontally inside the limiting cavity (8) for respectively driving the corresponding limiting rods (10) to move, and a second pressure sensor (12) is fixedly arranged between the limiting rods (10) and the third vertical oil cylinder (11).

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