A vertical assembly tool for motor assembly

Abstract

The utility model relates to a vertical assembly tool for motor assembly, include: base, guide mechanism, its fixed mounting is on the base, first support portion, it is fixedly installed with guide mechanism, second support portion, it is slidably connected with guide mechanism, and second support portion is constrained under first support portion by guide mechanism, and this second support portion can move along the vertical direction relative to first support portion, drive mechanism, its mounting is on the base and is driven coupling with second support portion, is used for driving second support portion moves along the linear trajectory, drive mechanism passes through the guidance of guide mechanism, drives second support portion and moves to make rotor assembly and stator assembly realize axial alignment assembly, through above -mentioned design, in the assembly process, the movement direction of rotor assembly is limited, can effectively avoid the deflection or the collision problem that leads to because the permanent magnet on rotor assembly and the adsorption of stator assembly, promoted the security and reliability of assembly process.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing process equipment technology, specifically to a vertical assembly fixture for motor assembly. Background Technology

[0002] As a core component in industrial automation equipment and household appliances, the assembly quality of electric motors directly affects the performance and lifespan of the entire machine. In the motor manufacturing process, the assembly of the stator and rotor assemblies is one of the key steps. Currently, the common assembly methods in the industry mainly rely on manual operation or simple assembly fixtures. Typically, the stator assembly is fixed on a workstation platform, and operators manually align the rotor assembly before assembly. Some production lines utilize guide sleeves, pressing tables, or semi-automatic pressing machines to assist in this process, thereby improving assembly efficiency and consistency.

[0003] However, existing assembly methods generally suffer from the following problems: First, the rotor assembly is equipped with strong permanent magnets, which are easily attracted to the inner circle of the stator silicon steel sheets when near the stator assembly. This can lead to misalignment or accidental collisions during assembly, resulting in scratches on the stator silicon steel sheets or damage to the permanent magnets, reducing the yield of motor products. Second, manual operation requires operators to rely on experience to control coaxiality, which is labor-intensive and makes it difficult to guarantee high-precision assembly consistency. Third, while some auxiliary tooling can provide some guidance, it is still insufficient in achieving precise coaxial positioning of the rotor and stator and ensuring safety, failing to effectively avoid safety hazards and potential product damage.

[0004] Therefore, existing technologies still suffer from problems such as difficulty in ensuring coaxiality, insufficient assembly accuracy, and personnel safety risks during the assembly of motor stators and rotors. Thus, it is necessary to research and improve the production and assembly methods for motors; to solve the above problems, the concept of this application is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a vertical assembly fixture for motor assembly, so as to solve at least one of the above-mentioned defects in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vertical assembly fixture for motor assembly, comprising: a base; a guide mechanism fixedly mounted on the base; a first support portion fixedly mounted to the guide mechanism; a second support portion slidably connected to the guide mechanism, wherein the second support portion is constrained by the guide mechanism below the first support portion, and the second support portion is capable of moving vertically relative to the first support portion; and a drive mechanism mounted on the base and drivenly connected to the second support portion, for driving the second support portion to move along a linear trajectory.

[0007] Preferably, the first support portion is used to fix the stator assembly, the second support portion is used to fix the rotor assembly, the rotor assembly is provided with a positioning component, and the stator assembly is provided with a mating portion coaxially corresponding to the positioning component.

[0008] Preferably, the guiding mechanism includes a plurality of guiding elements, which are distributed circumferentially along the second support portion.

[0009] Preferably, the guiding element includes a guide rod fixed to the base and a guide sleeve fixed to the second support and capable of sliding with the guide rod.

[0010] Preferably, the drive mechanism includes a transmission part and a control part. One end of the transmission part is connected to the control part, and the other end is connected to the second support part. The control part is used to drive the transmission part to move linearly so as to move the second support part vertically.

[0011] Preferably, the transmission part is rigidly connected to the central region of the second support part, and a plurality of the guide elements are evenly distributed around the transmission part in the circumference, so that the second support part can synchronously drive the guide rods corresponding to all the guide bushings to move under the drive of the transmission part.

[0012] Preferably, the vertical assembly fixture further includes a limiting part located above the second support part. When the second support part rises to a set position, the limiting ring abuts against the guide sleeve.

[0013] Preferably, the axis of the transmission part of the drive mechanism is coaxial with the axis of the straight trajectory defined by the guide element.

[0014] Preferably, the transmission unit is a linear transmission structure, the upper end of which is connected to the control component via a coupling; the control component is equipped with a gearbox, the output end of which is connected to the coupling.

[0015] Preferably, the first support portion has a workstation platform in the middle, the workstation platform is used to place the stator assembly, and the workstation platform is provided with a positioning structure for positioning the stator assembly.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: This vertical assembly fixture for motor assembly, by setting a first support and a second support, and under the constraint of a guiding mechanism, allows the second support to move along a straight trajectory perpendicular to the first support. During the assembly process, the movement direction of the rotor assembly is limited, effectively avoiding skewing or collision problems caused by the attraction between the permanent magnets on the rotor assembly and the stator assembly. This significantly reduces the risk of damage to the stator silicon steel sheets and permanent magnets, and improves the safety and reliability of the assembly process.

[0017] The connection between the drive mechanism and the second support unit enables the second support unit to achieve smooth and controllable vertical displacement, ensuring the motion accuracy of the rotor assembly during assembly, avoiding reliance on coaxiality control for manual operation, and significantly improving assembly accuracy and consistency. The drive mechanism adopts a combination of control components and transmission units, which can achieve fine adjustments and reduce the labor intensity of operators, thereby improving assembly working conditions.

[0018] Regarding the guiding mechanism, multiple guiding elements provide multi-point constraints to the second support, ensuring high stability during linear motion and preventing swaying or offset during displacement. This further guarantees precise alignment between the rotor and stator assemblies. Additionally, the limiting part restricts the maximum stroke of the second support, preventing damage from excessive pressing and ensuring the safety and controllability of the assembly process.

[0019] The workstation platform located in the middle of the first support section provides a reliable placement position for the stator assembly. Combined with its positioning structure, it ensures stable positioning of the stator assembly. The positioning rod on the rotor assembly cooperates with the positioning structure during movement, enabling precise alignment of the stator and rotor assemblies before press-fitting, thereby improving overall assembly efficiency. Furthermore, the additional partition structure limits the movement of the stator assembly, enhancing the applicability and reliability of the workstation platform during assembly.

[0020] In summary, the vertical assembly fixture of the present invention effectively solves the problem of assembly misalignment and damage caused by adsorption of rotor components in the prior art, significantly improves assembly accuracy, safety and efficiency, and is applicable to various motor production and assembly scenarios, with good practical value and promotion significance.

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an overall structure of the present invention; Figure 2 This is another overall structural schematic diagram of the present invention; Figure 3This is a schematic diagram of the exploded structure of this utility model; Figure 4 This is a cross-sectional structural diagram of the present invention; Figure 5 This is a partial structural diagram of the stator assembly of this utility model.

[0023] Reference numerals: 1. First support part; 11. Workstation platform; 12. Positioning structure; 2. Second support part; 3. Guide mechanism; 31. Guide element; 311. Guide bushing; 312. Guide rod; 4. Drive mechanism; 41. Transmission part; 42. Control component; 5. Rotor assembly; 51. Positioning component; 6. Stator assembly; 61. Mating part; 8. Base; 9. Stator partition. Detailed Implementation

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Detachable installation methods are varied, such as through plug-in and snap-fit ​​connections, or through bolt connections, etc.

[0025] The present invention will now be described in more detail with reference to specific embodiments. However, the implementation of the present invention is not limited thereto. The embodiments are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. For process parameters or conditions not specifically specified, conventional techniques can be referred to.

[0026] Please see Figures 1-5 As shown, the technical solution adopted in this specific embodiment is: a vertical assembly fixture for motor assembly, characterized in that it includes: a base 8; a guide mechanism 3, which is fixedly installed on the base 8; a first support part 1, which is fixedly installed with the guide mechanism 3; a second support part 2, which is slidably connected with the guide mechanism 3, and the second support part 2 is constrained by the guide mechanism 3 below the first support part 1, and the second support part 2 can move relative to the first support part 1 in a vertical direction; a drive mechanism 4, which is installed on the base 8 and drivenly connected to the second support part 2; for driving the second support part 2 to move along the linear trajectory; wherein, the drive mechanism 4 drives the second support part 2 to move through the guidance of the guide mechanism 3, so that the rotor assembly 5 and the stator assembly 6 can be axially aligned and assembled.

[0027] In this embodiment, the first support part 1 is a fixed plate, which is fixedly installed on the base 8 to support the motor stator assembly 6. The second support part 2 is a movable plate, located below the first support part 1. The movable plate can move vertically up and down under the action of the drive mechanism 4 to fix and drive the motor rotor assembly 5. The guide mechanism 3 includes multiple linear guide elements 31 connected between the first support part 1 and the second support part 2, which constrain the movement of the second support part 2 at multiple points to ensure that the movable plate moves linearly in the vertical direction without tilting or deflection. The drive mechanism 4 is rigidly connected to the second support part 2 and pushes the movable plate to make precise up and down displacement through manual or deceleration mechanisms. This structure ensures that the rotor assembly 5 can be inserted in a direction coaxial with the stator assembly 6, thereby avoiding deflection and damage caused by permanent magnet adsorption.

[0028] Please see Figure 1 , Figure 4 and Figure 5 As shown, the first support part 1 is used to fix the stator assembly 6, the second support part 2 is used to fix the rotor assembly 5, the rotor assembly 5 is provided with a positioning part 51, and the stator assembly 6 is provided with a mating part 61 that is coaxially corresponding to the positioning part 51.

[0029] The positioning component 51 and the mating part 61 can be gradually aligned during the movement of the second support part 2. In this embodiment, the positioning component 51 is a positioning rod. When the second support part 2 moves towards the first support part 1, the positioning rod moves with the rotor assembly 5 and inserts into the mating part 61 to achieve precise positioning of the rotor assembly 5 and the stator assembly 6 during assembly. The positioning rod at the top of the rotor assembly 5 is preferably a cylindrical rod. The mating part 61 can be a positioning hole or a positioning groove. Preferably, the mating part 61 is a stepped hole, the depth and diameter of which match the top of the positioning rod. This allows for precise alignment of the rotor assembly 5 and the stator assembly 6 during assembly, further improving assembly accuracy.

[0030] Please see Figure 1 , Figure 2 and Figure 4As shown, the guiding mechanism 3 includes multiple guiding elements 31, which are distributed circumferentially along the second support portion 2. The multiple guiding elements 31 are arranged opposite to each other, and each guiding element 31 cooperates with the first support portion 1 and the second support portion 2 respectively, for multi-point constraint of the movement of the second support portion 2. The guiding element 31 is a linear sliding pair structure, allowing the second support portion 2 to move linearly along the axial direction of the guiding element 31. Furthermore, the guiding element 31 includes a guide rod 312 fixed to the base 8, and a guide sleeve 311 fixed to the second support portion 2 and capable of sliding with the guide rod 312. The top of the guide rod 312 is fixed to the first support portion 1, and the bottom is fixed to the base 8 to ensure the stability of each guiding element 31.

[0031] In this embodiment, the guide mechanism 3 preferably consists of four guide rods 312, symmetrically arranged at the four corners of the second support. Each guide rod 312 has a guide sleeve 311 at its center, which is fixedly connected to the movable plate. The guide rod 312 passes through the sleeve and forms a sliding pair, allowing the movable plate to move smoothly in the vertical direction. This four-point symmetrical constraint structure effectively prevents the movable plate from tilting or wobbling, further ensuring assembly coaxiality.

[0032] Please see Figure 1 and Figure 2 As shown, the drive mechanism 4 includes a transmission part 41 and a control member 42. One end of the transmission part 41 is connected to the control member, and the other end is connected to the second support part 2. The control member is used to drive the transmission part 41 to move linearly so as to move the second support part 2 vertically. The axis of the transmission part 41 of the drive mechanism 4 is coaxially arranged with the axis of the linear trajectory defined by the guide element 31. The transmission part 41 is rigidly connected to the central area of ​​the second support part 2. A plurality of guide elements 31 are evenly distributed around the transmission part 41 so that the second support part 2 can synchronously drive all the guide rods 312 corresponding to the guide bushings 311 to move under the drive of the transmission part 41. The transmission part 41 is a linear transmission structure. The upper end of the linear transmission structure is connected to the control member 42 through a coupling. A gearbox is provided on the control member 42. The output end of the gearbox is connected to the coupling.

[0033] The linear transmission structure can be a trapezoidal lead screw, the upper end of which is connected to the control component 42 via a coupling; the control component 42 is a handwheel, on which a gearbox is provided, and the output end of the gearbox is connected to the coupling; the vertical assembly fixture also includes a base 8, the bottom end of which is fixedly connected to the base 8 to ensure the stability of the lead screw mechanism; the trapezoidal lead screw is installed at the bottom of the first support part 1 via a lead screw support, which supports the trapezoidal lead screw; the second support part 2 is sleeved with the trapezoidal lead screw via a limiting member, which is fixed to the second support part 2 and can slide relative to the trapezoidal lead screw.

[0034] In this embodiment, the drive mechanism 4 is preferably driven by a handwheel. The handwheel is connected to the trapezoidal lead screw via a gearbox. When the handwheel is rotated, the trapezoidal lead screw drives the movable plate to move linearly up and down. The upper part of the trapezoidal lead screw is mounted below the fixed plate via a lead screw support, and the lower end is fixed to the base 8, thus forming a stable support. The movable plate is fitted into the middle of the lead screw by a hollow limiting member. The limiting member is fixed to the movable plate, and the lead screw slides relative to it to ensure smooth transmission. The gearbox allows for both rapid and fine-tuning displacement modes, improving assembly efficiency and accuracy.

[0035] The vertical assembly fixture also includes a limiting part located above the second support part 2. When the second support part 2 rises to a set position, the limiting ring abuts against the guide sleeve 311. The limiting part is used to limit the maximum displacement stroke of the second support part 2. Preferably, the limiting part can be a limiting ring, which is set at an appropriate height of the guide rod 312. When the movable plate rises to a set limit position, the limiting ring contacts the guide sleeve 311 to prevent the movable plate from continuing to move upward and avoid over-pressing.

[0036] Please see Figure 1 and Figure 3 As shown, a workstation platform 11 is provided in the middle of the first support part 1. The workstation platform 11 is used to place the stator assembly 6. A positioning structure 12 for positioning the stator assembly 6 is provided on the workstation platform 11 to limit the position of the stator assembly 6. Furthermore, a stator partition 9 is provided on the workstation platform 11. The stator partition 9 is located above the stator assembly 6 and is used to limit and position the stator assembly 6. In addition, the stator partition 9 can be configured as a horizontally movable stator partition 9.

[0037] In this embodiment, the workstation platform 11 is fixedly installed in the middle of the first support part 1, and its surface is provided with an annular positioning structure 12, which can match the shape of the stator housing, thereby preventing the stator assembly 6 from rotating or shifting during assembly. Preferably, a stator partition 9 is added to the workstation platform 11, which fits against the outer wall of the stator assembly 6, which can further realize the limiting and fixing of the stator and improve the applicability of the workstation.

[0038] In another embodiment, the control element 42 can be replaced by an electric servo motor to achieve automatic control and improve the degree of automation. The guide mechanism 3 can be replaced by a rolling guide pair instead of the combination of guide sleeve 311 and guide rod 312 to further improve the smoothness of sliding. The positioning structure 12 of the workstation platform 11 can adopt adjustable jaws to accommodate different models of stator assembly 6.

[0039] In the actual assembly process, the motor stator assembly 6 is first placed on the workstation platform 11 of the first support part 1, and is fixed by the positioning structure 12 and stator partition 9 on the workstation platform 11 to ensure that the stator assembly 6 maintains a stable position. Then, the motor rotor assembly 5 is installed on the second support part 2, and its top positioning rod is aligned with the positioning structure 12 on the stator assembly 6. Under the control of the drive mechanism 4, the operator rotates the handwheel, which, through the transmission of the gearbox and trapezoidal lead screw, drives the second support part 2 to move smoothly upward along the linear trajectory of the guide mechanism 3. During the upward movement, the guide mechanism 3 provides multi-point constraints to the second support part 2, ensuring that it maintains stable vertical movement and preventing swaying or deviation. As the rotor assembly 5 gradually approaches the stator assembly 6, the positioning rod automatically inserts into the corresponding positioning structure 12, achieving coaxial alignment between the two. Furthermore, during the continued upward movement, the movement of the second support 2 is restricted by the limiting part: when the preset endpoint is reached, the limiting part abuts against the guide sleeve 311 to prevent the second support 2 from continuing to move upward, thereby effectively avoiding component damage caused by excessive pressing. At this point, the rotor assembly 5 and the stator assembly 6 are precisely assembled. The entire operation is safe, reliable, and highly accurate, significantly reducing the difficulty and labor intensity of manual operation.

[0040] The foregoing, in conjunction with the embodiments and accompanying drawings, has clearly and completely described the concept, specific structure, and technical effects of this utility model, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions.

[0041] The above description of the specific embodiments of this utility model is only used to further illustrate this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-essential improvements and adjustments made to this utility model by technical engineers based on the above description of the utility model shall fall within the scope of protection of this utility model.

Claims

1. A vertical assembly tool for motor assembly, characterized by, include: Base; A guiding mechanism, which is fixedly installed on the base; The first support part is fixedly installed with the guide mechanism; The second support portion is slidably connected to the guide mechanism, and the second support portion is constrained by the guide mechanism below the first support portion, and the second support portion is capable of moving relative to the first support portion in a vertical direction; A drive mechanism is mounted on the base and drivenly connected to the second support.

2. The vertical assembly tooling for motor assembly of claim 1, wherein, The first support part is used to fix the stator assembly, the second support part is used to fix the rotor assembly, the rotor assembly is provided with a positioning component, and the stator assembly is provided with a mating part that is coaxially corresponding to the positioning component.

3. The vertical assembly tool for motor assembly according to claim 1, wherein The guiding mechanism includes a plurality of guiding elements, which are distributed circumferentially along the second support portion.

4. The vertical assembly fixture for motor assembly according to claim 3, characterized in that, The guiding element includes a guide rod fixed to the base and a guide sleeve fixed to the second support and capable of sliding with the guide rod.

5. The vertical assembly fixture for motor assembly according to claim 4, characterized in that, The drive mechanism includes a transmission part and a control part. One end of the transmission part is connected to the control part, and the other end is connected to the second support part. The control part is used to drive the transmission part to move linearly so as to move the second support part vertically.

6. The vertical assembly fixture for motor assembly according to claim 5, characterized in that, The transmission part is rigidly connected to the central area of ​​the second support part, and a plurality of the guide elements are evenly distributed around the transmission part in the circumference, so that the second support part can synchronously drive the guide rods corresponding to all the guide bushings to move under the drive of the transmission part.

7. The vertical assembly fixture for motor assembly according to claim 4, characterized in that, The vertical assembly fixture also includes a limiting part located above the second support part. When the second support part rises to the set position, the limiting part abuts against the guide sleeve.

8. The vertical assembly fixture for motor assembly according to claim 5, characterized in that, The axis of the transmission part of the drive mechanism is coaxial with the axis of the straight trajectory defined by the guide element.

9. The vertical assembly fixture for motor assembly according to claim 5, characterized in that, The transmission unit is a linear transmission structure, and the upper end of the linear transmission structure is connected to the control component via a coupling; the control component is equipped with a gearbox, and the output end of the gearbox is connected to the coupling.

10. The vertical assembly fixture for motor assembly according to any one of claims 1-9, characterized in that, The first support part has a workstation platform in the middle, which is used to place the stator assembly. The workstation platform is provided with a positioning structure for positioning the stator assembly.

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