Motor iron core laminating device

Abstract

The invention discloses a motor iron core laminating device which comprises a rack, a fixing seat, a fixing mechanism, a pushing driving part, a lifting driving part, a pressing assembly and a widening mechanism. The fixing seat is fixedly arranged on the rack, the fixing mechanism is arranged on the fixing seat in a sliding mode, and the pushing driving piece is arranged on the rack and can drive the fixing mechanism to slide towards an iron core so as to clamp the iron core; the lifting driving piece is arranged on the rack, and the downward pressing assembly is arranged on the lifting driving piece and can drive the downward pressing assembly to move towards the fixing base; the multiple widening mechanisms are rotationally connected to the downward pressing assembly, and the extrusion area between the widening mechanisms and the iron core can be changed by rotating the widening mechanisms. The motor iron core overlying device can adapt to iron cores with different sizes, and a fixing structure or a lower pressing plate does not need to be replaced.

Description

Technical Field

[0001] The present invention belongs to the technical field of motor manufacturing, and in particular relates to a motor iron core lamination device. Background Art

[0002] In the field of new energy vehicles, the motor is a core power component, and its performance directly determines the vehicle's endurance, power output and operating stability. The motor core is a key component of the motor's magnetic circuit, and its stacking accuracy and consistency have a significant impact on the motor's magnetic permeability, iron loss and overall efficiency. Therefore, the motor core stacking device is a key equipment in the production process of new energy vehicle motors. Currently, existing motor core lamination devices typically rely on fixed structures of specific sizes (such as positioning columns and limit plates) to circumferentially position the core punchings, and use correspondingly sized lower pressure plates to achieve axial lamination. However, in actual production, the outer diameter, inner diameter, and stacking thickness of the cores of new energy vehicle motors vary widely depending on the vehicle model and power level. When processing cores of different sizes, the existing device must be shut down and the fixed structures and lower pressure plates matching the new dimensions must be replaced. This not only consumes significant changeover time and reduces the continuous operation efficiency of the production line, but the frequent assembly and disassembly processes can easily lead to deviations in the positioning reference, affecting the coaxiality and flatness of the core lamination, and thus adversely affecting motor performance. Furthermore, equipping multiple sets of fixed structures and lower pressure plates for cores of different sizes increases the equipment's manufacturing cost and storage space, hindering the optimal allocation of production resources. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the object of the present invention is to provide a motor core stacking device to solve the technical problem mentioned in the above background technology that it is difficult to adapt to the stacking of cores of different sizes.

[0004] To achieve the aforementioned object of the invention, the technical solutions adopted by the present invention include: A motor core lamination device comprises a frame, a fixing seat, a fixing mechanism, a pushing drive member, a lifting drive member, a pressing assembly and a widening mechanism; The fixing seat is fixed on the frame, the fixing mechanism is slidably provided on the fixing seat, and the pushing driving member is provided on the frame and can drive the fixing mechanism to slide toward the iron core so as to clamp the iron core; The lifting drive member is provided on the frame, and the pressing assembly is provided on the lifting drive member and can drive the pressing assembly to move toward the fixing seat; The widening mechanism is provided with multiple groups and is rotatably connected to the pressing assembly. Rotating the widening mechanism can change the extrusion area with the iron core.

[0005] Furthermore, the lower pressure assembly includes an upper fixed plate, an upper connecting rod and a lower pressure plate; the upper fixed plate is fixed on the output shaft of the lifting drive member, and the end of the upper fixed plate away from the lifting drive member is connected to the lower pressure plate through the upper connecting rod; the widening mechanism is rotatably connected to the upper fixed plate, and can be raised and lowered so that its bottom surface and the bottom surface of the lower pressure plate are in the same horizontal plane.

[0006] Furthermore, the widening mechanism includes a driving gear ring and a lifting assembly; the driving gear ring is rotatably connected to the upper fixed plate, and the driving gear ring is an internal gear ring; the lifting assembly can be lifted and lowered through the upper fixed plate, and the rotation of the driving gear ring can drive the lifting assembly to rise and fall.

[0007] Furthermore, the lifting assembly includes a lifting screw, a lifting gear and a widening plate; the lifting gear is rotatably connected to the upper fixed plate and meshes with the driving gear ring; the lifting screw passes through and is screwed to the lifting gear and the upper fixed plate, and the widening plate is rotatably connected to the widening plate at one end away from the upper fixed plate, and the widening plate is tightly fitted with the adjacent lower pressure plate and the other adjacent widening plate.

[0008] Furthermore, the fixing mechanism includes a clamping assembly and a driven gear; the clamping assembly is slidably connected to the fixed seat and is circumferentially provided with multiple groups, the driven gear is rotatably connected to the bottom surface of the fixed seat, the sliding of one clamping assembly can drive the sliding of the remaining clamping assemblies through the driven gear, and the telescopic end of the pushing drive member is connected to one of the clamping assemblies.

[0009] Furthermore, the clamping assembly includes a clamping plate, a clamping link and a second rack; the second rack is slidably connected to the bottom surface of the fixed seat and is connected to the clamping plate through the clamping link, the clamping plate is placed on the top surface of the fixed seat, and the second rack is engaged with the driven gear.

[0010] Furthermore, a driven mechanism is provided, which is slidably arranged on the frame. The extension and retraction of the push driving member can drive the widening mechanisms to rotate in sequence through the driven mechanism.

[0011] Furthermore, the driven mechanism includes a driven slide bar, a connecting ring, a telescopic rod and a first rack; one end of the driven slide bar is connected to the movable end of the push-driving member, and the other end is slidably connected to the frame, the fixed end of the telescopic rod is liftable and slidably connected to the frame, the movable end of the telescopic rod is slidably connected to the downward pressure assembly through the first rack, one end of the connecting ring is fixed on the telescopic end of the telescopic rod, and the other end is sleeved on the driven slide bar; the first rack and the widening mechanism correspond one to one and are arranged on the telescopic end of the telescopic rod, and the first rack can drive each of the widening mechanisms to rotate in sequence.

[0012] Compared with the prior art, the advantages of the present invention include: In the present application, by controlling the sliding distance of the fixing mechanism, iron cores of different sizes can be fixed on the fixing seat, and by rotating each widening mechanism, the extrusion area of ​​the iron core can be changed, so that the extrusion area matches the cross-sectional area of ​​the iron core. That is, the present application can adapt to the stacking of iron cores of different sizes of motors caused by different car models without replacing the pressing parts or fixing parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is an overall schematic diagram of a motor core lamination device in the present invention; Figure 2 is a schematic diagram of the fixing seat and the fixing mechanism in the present invention; Figure 3 Schematic diagram of the widening mechanism in the present invention.

[0015] Reference numerals: Frame 1, fixed base 2, fixing mechanism 3, clamping assembly 31, clamping plate 311, clamping connecting rod 312, second rack 313, driven gear 32, pushing drive member 4, lifting drive member 5, pressing assembly 6, upper fixed plate 61, upper connecting rod 62, lower pressing plate 63, widening mechanism 7, driving gear ring 71, lifting assembly 72, lifting screw 721, lifting gear 722, widening plate 723, driven mechanism 8, driven slide rod 81, connecting ring 82, telescopic rod 83, first rack 84. DETAILED DESCRIPTION

[0016] In view of the deficiencies in the prior art, the inventors of this case have proposed the technical solution of the present invention after long-term research and extensive practice. The following will further explain the technical solution, its implementation process and principles, etc. in conjunction with the drawings in the embodiments of this application and specific implementation cases.

[0017] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, the present invention covers any substitution, modification, equivalent method and scheme made within the spirit, principle and scope of the present invention defined by the claims. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] In the description of this application, "first", "second", "third" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "a" or "an" and other similar words do not indicate a quantity limitation, but rather indicate the existence of at least one. "Include" or "comprising" and other similar words mean that the elements or objects appearing before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0019] In the description of this application, the terms "center," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this application. Furthermore, when positional terms such as "both sides," "outside," "upper," and "lower" are used, they should be understood to be used solely to facilitate understanding and description, taking into account that the structure may be oriented in other directions.

[0020] In the description of this application, unless otherwise clearly specified and limited, the technical or scientific terms used should have the usual meanings understood by persons with ordinary skills in the field to which this application belongs. Terms such as "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection, or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] The embodiments of the present invention are intended to introduce and illustrate the structural composition of a motor core stacking device and the coordination relationship between the various components. Unless otherwise specified, the dimensions, materials, and manufacturing processes of the various components suitable for the motor core stacking device in the embodiments of the present invention can be selected according to specific circumstances and are not specifically limited or described herein.

[0022] Furthermore, in order to provide the public with a better understanding of the present invention, some specific details are described in detail in the following detailed description of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

[0023] Please also refer to Figure 1-Figure 3 , this embodiment provides a motor core lamination device, including a frame 1, a fixing seat 2, a fixing mechanism 3, a pushing drive member 4, a lifting drive member 5, a pressing assembly 6 and a widening mechanism 7; The fixing base 2 is fixed to the frame 1, the fixing mechanism 3 is slidably mounted on the fixing base 2, and the driving member 4 is mounted on the frame 1 and can drive the fixing mechanism 3 to slide toward the iron core, thereby clamping the iron core. It should be understood that when several iron cores are stacked on the fixing base 2, the fixing mechanism 3 is away from the side of the iron core. After the driving member 4 is activated, the driving member 4 extends, driving the fixing mechanism 3 to slide toward the side of the iron core, and ultimately clamping the iron core. Because its sliding distance can be controlled by the driving member 4, it is suitable for fixing iron cores of different sizes. Preferably, the driving member 4 is a component capable of linear reciprocating drive, such as a cylinder or a linear motor.

[0024] The lifting drive 5 is provided on the frame 1, and the pressing assembly 6 is provided on the lifting drive 5 and can drive the pressing assembly 6 to move toward the fixed seat 2. Specifically, the lifting drive 5 is provided on the top of the frame 1 and can drive the pressing assembly 6 to rise and fall. The bottom surface area of ​​the pressing assembly 6 is fixed, and its area corresponds to the basic size of the iron core. For the iron core with a larger cross-sectional area, the widening mechanism 7 is used to expand the extrusion area with the iron core to achieve the pressing of the iron core. Similarly, preferably, the lifting drive 5 is a part capable of achieving linear reciprocating drive, such as a cylinder or a linear motor.

[0025] Multiple expansion mechanisms 7 are provided, rotatably connected to the lower pressure assembly 6. Rotating the expansion mechanisms 7 changes the area of ​​contact with the core. Specifically, to expand the area of ​​contact with the core, the expansion mechanisms 7 are rotated sequentially from the inside to the outside. The outer expansion mechanisms 7 are rotated only after the inner expansion mechanisms 7 have reached their bottom. In other words, each expansion mechanism 7 corresponds to a specific width and must be used in conjunction with the inner expansion mechanism 7. Conversely, to reduce the area of ​​contact, the expansion mechanisms 7 are rotated sequentially from the outside to the inside. It should be understood that the expansion mechanisms 7 can rise and fall as the lower pressure assembly 6 rises and falls.

[0026] In the present application, by controlling the sliding distance of the fixing mechanism 3, iron cores of different sizes can be fixed on the fixing seat 2, and by rotating each widening mechanism 7, the extrusion area of ​​the iron core can be changed, so that the extrusion area matches the cross-sectional area of ​​the iron core. That is, the present application can adapt to the stacking of iron cores of different sizes of motors caused by different car models without replacing the pressing parts or fixing parts.

[0027] In other embodiments, the pressing assembly 6 includes an upper fixed plate 61, an upper connecting rod 62, and a lower pressing plate 63; the upper fixed plate 61 is fixed on the output shaft of the lifting drive member 5, and the upper fixed plate 61 is connected to the lower pressing plate 63 at one end away from the lifting drive member 5 via the upper connecting rod 62; the widening mechanism 7 is rotatably connected to the upper fixed plate 61, and can be raised and lowered so that its bottom surface and the bottom surface of the lower pressing plate 63 are at the same horizontal plane. It should be understood that when the bottom surface of the lower pressing plate 63 and the bottom surface of the widening mechanism 7 are at the same horizontal plane, they can jointly squeeze the iron core, that is, at this time, the two together form the pressing surface. When the bottom surface of the widening mechanism 7 is higher than the bottom surface of the lower pressing plate 63, it does not participate in the pressing of the iron core.

[0028] In other embodiments, the widening mechanism 7 includes a drive gear ring 71 and a lifting assembly 72. The drive gear ring 71 is rotatably connected to the upper fixed plate 61 and is an internal gear ring. The lifting assembly 72 is traversably mounted on the upper fixed plate 61. The rotation of the drive gear ring 71 drives the lifting assembly 72 up and down. Specifically, the lifting assembly 72 is level with the bottom surface of the lower pressure plate 63 by being raised and lowered, thereby changing the downward pressure area.

[0029] In other embodiments, the lifting assembly 72 includes a lifting screw 721, a lifting gear 722, and a widening plate 723; the lifting gear 722 is rotatably connected to the upper fixed plate 61 and meshes with the drive gear ring 71; the lifting screw 721 passes through and is screwed to the lifting gear 722 and the upper fixed plate 61, and the widening plate 723 is rotatably connected to the widening plate 723 at one end away from the upper fixed plate 61, and the widening plate 723 is tightly fitted with the adjacent lower pressure plate 63 and another adjacent widening plate 723. Specifically, the widening plate 723 is a concentric ring coaxial with the lower pressure plate 63, and the upper fixed plate 61 and the lifting gear 722 are provided with threaded holes corresponding to the lifting screw 721, and the threaded holes of the two are coaxially arranged. Preferably, a baffle is also provided on the lifting screw 721 to limit the descent size of the lifting screw 721, so that the lifting screw 721 stops descending after descending to the required distance.

[0030] In other embodiments, the fixing mechanism 3 includes a clamping assembly 31 and a driven gear 32. The clamping assembly 31 is slidably connected to the fixing base 2 and is provided in multiple groups circumferentially. The driven gear 32 is rotatably connected to the bottom surface of the fixing base 2. The sliding of one clamping assembly 31 can drive the sliding of the remaining clamping assemblies 31 through the driven gear 32, pushing the telescopic end of the driving member 4 to connect with a clamping assembly 31. It should be understood that each clamping assembly 31 moves radially along the fixing base 2 and slides inward or outward simultaneously.

[0031] In other embodiments, the clamping assembly 31 includes a clamping plate 311, a clamping link 312, and a second rack 313. The second rack 313 is slidably connected to the bottom surface of the fixed base 2 and connected to the clamping plate 311 via the clamping link 312. The clamping plate 311 is placed on the top surface of the fixed base 2, and the second rack 313 is meshed with the driven gear 32. Specifically, different second racks 313 are positioned at different heights, and the projections of each second rack 313 on the same vertical plane are located on different horizontal planes. That is, when sliding, the second racks 313 pass above or below adjacent second racks 313. A sliding groove is provided on the second rack 313, and a sliding connection is achieved through a boss on the bottom surface of the fixed seat 2, so that the clamping plate 311 slides on the top surface of the fixed seat 2 along the radial direction of the fixed seat 2; the clamping link 312 is an L-shaped rod or a quasi-L-shaped rod, and the driven gear 32 is engaged with each second rack 313 at the same time, pushing the driving member 4 and the clamping link 312 of a clamping assembly 31 to be connected.

[0032] In other solutions, a driven mechanism 8 is further provided. The driven mechanism 8 is slidably provided on the frame 1 , and the extension and retraction energy of the driving member 4 drives the widening mechanisms 7 to rotate in sequence through the driven mechanism 8 .

[0033] Specifically, in the initial state, each widening mechanism 7 is in a state of expanding the area squeezed with the iron core to the maximum, that is, the downward pressure area is at its maximum state at this time. As the push-drive member 4 extends, the fixing mechanism 3 gradually slides inward, and the corresponding cross-sectional area of ​​the iron core becomes smaller. At the same time, the push-drive member 4 drives each widening mechanism 7 to reverse from the outside to the inside through the driven mechanism 8, thereby reducing the downward pressure area, so that the downward pressure area corresponds to the cross-sectional area of ​​the iron core, and the downward pressure area is the contact area with the iron core; conversely, the shortening of the push-drive member 4 drives each widening mechanism 7 from the inside to the outside through the driven mechanism 8 to increase the downward pressure area. More specifically, the previous widening mechanism 7 can only drive the next widening mechanism 7 to move after it moves to the bottom. Through this structure, the downward pressure area can be automatically changed according to the size fixed by the fixing mechanism 3, so that the downward pressure area corresponds to the cross-sectional area of ​​the iron core. It is worth noting that when the pressing area is larger than the cross-sectional area of ​​the iron core, the pressing plate 63 that exceeds the iron core is useless and may react to the edge of the iron core due to its own deformation, resulting in abnormal local pressure. Therefore, the corresponding pressing area should be selected for iron cores with different cross-sectional areas. Too large or too small a pressing area will not bring a good pressing effect.

[0034] In other schemes, the driven mechanism 8 includes a driven slide 81, a connecting ring 82, a telescopic rod 83 and a first rack 84; one end of the driven slide 81 is connected to the movable end of the push-driving member 4, and the other end is slidably connected to the frame 1, the fixed end of the telescopic rod 83 is slidably connected to the frame 1, and the movable end of the telescopic rod 83 is slidably connected to the pressing component 6 through the first rack 84, one end of the connecting ring 82 is fixed on the telescopic end of the telescopic rod 83, and the other end is sleeved on the driven slide 81; the first rack 84 and the widening mechanism 7 correspond one to one and are arranged on the telescopic end of the telescopic rod 83, and the first rack 84 can drive each widening mechanism 7 to rotate in sequence.

[0035] It should be understood that the driven slide 81 slides horizontally, while the telescopic rod 83 rises and falls vertically. The projections of the telescopic rod 83 and the driven slide 81 on a plane are perpendicular to each other. The sliding of the driven slide 81 can drive the telescopic rod 83 to extend and retract via the connecting ring 82. Each first rack 84 is arranged at a different height depending on its corresponding widening mechanism 7. The first rack 84 at its bottom is slidably connected to the down-pressing assembly 6. The lifting and lowering of the down-pressing assembly 6 can drive the lifting and lowering of the first rack 84, thereby driving the lifting and lowering of the telescopic rod 83. Since the connecting ring 82 is sleeved on the driven slide 81, the connecting ring 82 will rise and fall on the driven slide 81. Preferably, the connecting ring 82 is fixedly connected to the telescopic rod 83 via a connecting rod. In this embodiment, the outer side of the driving gear ring 71 is also provided with gear teeth that can mesh with the corresponding first rack 84. The heights of different driving gear rings 71 vary, and the height increases from the outside to the inside. In the initial state, the bottom surface of each widening plate 723 and the bottom surface of the down-pressing plate 63 are on the same horizontal plane.

[0036] The motor core lamination device can adapt to different core sizes without replacing the fixing structure or the lower pressing plate.

[0037] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make some simple deductions or substitutions without departing from the concept of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A motor core lamination device, characterized in that: It includes a frame, a fixing seat, a fixing mechanism, a pushing drive member, a lifting drive member, a pressing component and a widening mechanism; The fixing seat is fixed on the frame, the fixing mechanism is slidably provided on the fixing seat, and the pushing driving member is provided on the frame and can drive the fixing mechanism to slide toward the iron core so as to clamp the iron core; The lifting drive member is provided on the frame, and the pressing assembly is provided on the lifting drive member and can drive the pressing assembly to move toward the fixing seat; The widening mechanism is provided with multiple groups and is rotatably connected to the pressing assembly. Rotating the widening mechanism can change the extrusion area with the iron core.

2. The motor core lamination device according to claim 1, characterized in that: The lower pressure assembly includes an upper fixed plate, an upper connecting rod and a lower pressure plate; the upper fixed plate is fixed on the output shaft of the lifting drive member, and the end of the upper fixed plate away from the lifting drive member is connected to the lower pressure plate through the upper connecting rod; the widening mechanism is rotatably connected to the upper fixed plate, and can be raised and lowered so that its bottom surface and the bottom surface of the lower pressure plate are on the same horizontal plane.

3. The motor core lamination device according to claim 2, characterized in that: The widening mechanism includes a driving gear ring and a lifting assembly; the driving gear ring is rotatably connected to the upper fixed plate, and the driving gear ring is an internal gear ring; the lifting assembly is liftably arranged on the upper fixed plate, and the rotation of the driving gear ring can drive the lifting assembly to move up and down.

4. The motor core lamination device according to claim 3, characterized in that: The lifting assembly includes a lifting screw, a lifting gear and a widening plate; the lifting gear is rotatably connected to the upper fixed plate and meshes with the driving gear ring; the lifting screw passes through and is screwed to the lifting gear and the upper fixed plate, and the widening plate is rotatably connected to the widening plate at one end away from the upper fixed plate, and the widening plate is tightly fitted with the adjacent lower pressure plate and the other adjacent widening plate.

5. The motor core lamination device according to claim 1, characterized in that: The fixing mechanism includes a clamping assembly and a driven gear; the clamping assembly is slidably connected to the fixing seat and is circumferentially provided with multiple groups, the driven gear is rotatably connected to the bottom surface of the fixing seat, the sliding of one clamping assembly can drive the sliding of the remaining clamping assemblies through the driven gear, and the telescopic end of the pushing drive member is connected to one of the clamping assemblies.

6. The motor core lamination device according to claim 5, characterized in that: The clamping assembly includes a clamping plate, a clamping connecting rod and a second rack; the second rack is slidably connected to the bottom surface of the fixed seat and is connected to the clamping plate through the clamping connecting rod. The clamping plate is placed on the top surface of the fixed seat, and the second rack is engaged with the driven gear.

7. The motor core lamination device according to claim 1, characterized in that: A driven mechanism is also provided, which is slidably arranged on the frame. The extension and retraction of the push driving member can drive the widening mechanisms to rotate in sequence through the driven mechanism.

8. The motor core lamination device according to claim 7, characterized in that: The driven mechanism includes a driven slide bar, a connecting ring, a telescopic rod and a first rack; one end of the driven slide bar is connected to the movable end of the push-driving member, and the other end is slidably connected to the frame; the fixed end of the telescopic rod is liftable and slidably connected to the frame, and the movable end of the telescopic rod is slidably connected to the downward pressure assembly through the first rack; one end of the connecting ring is fixed on the telescopic end of the telescopic rod, and the other end is sleeved on the driven slide bar; the first rack and the widening mechanism correspond one to one and are arranged on the telescopic end of the telescopic rod, and the first rack can drive each of the widening mechanisms to rotate in sequence.

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