Assembly device and method for direct drive motor

Abstract

The present invention discloses an assembly device for a direct-drive motor, including a fixing mechanism for fixing the direct-drive motor housing and a bearing assembly mechanism for pushing a motor bearing or a motor spacer into the fixed direct-drive motor housing, including a spindle assembly mechanism for pulling a motor spindle into the assembly hole of a motor bearing or / and a motor spacer that has been assembled in the direct-drive motor housing. The present invention discloses an assembly method for a direct-drive motor, S1: fixing the direct-drive motor housing; S2: using a bearing assembly mechanism to push a motor bearing or a motor spacer into the direct-drive motor housing and press it to an installation position; S3: using a spindle assembly mechanism that can be detached and assembled with the motor spindle to pull the motor spindle into the direct-drive motor housing and move it along the axial direction of the motor bearing and the motor spacer and assemble it into the assembly hole of the motor bearing and the motor spacer. The assembly device and method provided by the present invention can easily realize assembly and avoid friction between various parts, thereby improving the precision of the direct-drive motor.

Description

[Technical field]

[0001] The present application relates to the technical field of CNC machine tool tooling, and in particular to an assembly device and method for a direct-drive motor. [Background technology]

[0002] In recent years, direct-drive motors have been widely accepted as a new technology (new concept), and the corresponding assembly of direct-drive motors has gradually become an issue worthy of attention. During the assembly process, how to install bearings and spindles to avoid surface wear and precision protection of bearings and spindles has become increasingly important, and a suitable tooling can solve these problems well. [Summary of the invention]

[0003] The present invention aims at the need for a tooling to avoid wear of bearings and spindle surfaces and improve precision protection during the assembly process of a direct-drive motor, and provides an assembly device for a direct-drive motor, including a fixing mechanism for fixing the direct-drive motor housing and a bearing assembly mechanism for pushing a motor bearing or a motor spacer into the fixed direct-drive motor housing.

[0004] As an improvement of the assembly device of the above-mentioned direct drive motor, the bearing assembly mechanism includes a collision sleeve for pushing the motor bearing or the motor spacer into the direct drive motor housing fixed on the fixing mechanism and pushing it to the installation position.

[0005] As an improvement to the assembly device of the above-mentioned direct-drive motor, the impact sleeve includes an assembly part and a connecting part arranged on the assembly part, the assembly part is a hollow cylinder, the outer diameter of the assembly part is smaller than the aperture of the mounting hole of the direct-drive motor housing, and the inner diameter of the impact sleeve is larger than the inner diameter of the motor bearing and the outer ring of the motor sleeve.

[0006] As an improvement to the assembly device of the above-mentioned direct drive motor, the impact sleeve is provided with a power mechanism for driving the impact sleeve to move so as to push the motor bearing or the motor spacer into the direct drive motor housing fixed on the fixing mechanism and push it to the installation position.

[0007] As an improvement to the assembly device of the above-mentioned direct drive motor, the power mechanism includes a sliding assembly arranged on the fixing mechanism and a motor that drives the sliding assembly to slide along the fixing mechanism to approach or move away from a direct drive motor housing fixed on the fixing mechanism, and the sliding assembly is provided with the collision sleeve.

[0008] As an improvement to the assembly device of the above-mentioned direct-drive motor, the fixing mechanism includes a base and a fixing bracket arranged on the base for fixing the direct-drive motor housing, the base is provided with a slide rail, the sliding assembly includes a sliding base arranged on the slide rail and sliding along the slide rail, the sliding base is detachably connected to a collision sleeve connecting rod, and the collision sleeve connecting rod is provided with the collision sleeve.

[0009] As an improvement of the assembly device of the above-mentioned direct-drive motor, it includes a spindle assembly mechanism for pulling the motor spindle into the assembly hole of the motor bearing and / or the motor spacer that has been assembled in the direct-drive motor housing.

[0010] As an improvement of the assembly device of the above-mentioned direct-drive motor, the spindle assembly mechanism includes a pull rod for detachably connecting to the motor spindle and a spindle assembly component for driving the pull rod to move and pull the motor spindle into the assembly hole of the motor bearing and / or the motor spacer that has been assembled in the direct-drive motor housing.

[0011] As an improvement to the assembly device of the above-mentioned direct-drive motor, when the motor spindle is in an assembled state, the pull rod is inserted into one end of the direct-drive motor housing and extends out from the opposite end of the direct-drive motor housing, and an external thread is provided on the pull rod. The spindle assembly component includes a nut threadedly connected to the end of the pull rod away from the motor spindle, and a sleeve sleeved on the pull rod is provided between the nut and the direct-drive motor housing. The nut is rotated to move the pull rod along the axial direction of the motor spindle so that the motor spindle is assembled into the assembly hole of the motor bearing and / or the motor spacer.

[0012] The present invention aims at the need for a method for avoiding wear of the bearing and the spindle surface and improving precision protection during the assembly process of the direct-drive motor, and provides an assembly method for the direct-drive motor, comprising the following steps:

[0013] S1: fix the direct drive motor housing;

[0014] S2: Use the bearing assembly mechanism to push the motor bearing or motor spacer into the direct drive motor housing and press it to the installation position;

[0015] S3: Use a spindle assembly mechanism that can be detached and assembled from the motor spindle to pull the motor spindle into the direct drive motor housing and move it along the axial direction of the motor bearing and the motor spacer and assemble it into the assembly hole of the motor bearing and the motor spacer.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The present invention provides an assembly device and method for a direct-drive motor, wherein the housing of the direct-drive motor is fixed by utilizing the fixing mechanism, and the bearing or spacer sleeve is pushed into the housing of the direct-drive motor in sequence by utilizing a bearing assembly mechanism such as a collision sleeve that can be inserted into the housing of the direct-drive motor and pressed to the installation position, and then the main shaft assembly mechanism such as a pull rod and a thread and a sleeve that are moved by the driving pull rod are used to assemble the main shaft into the installation holes of the shaft sleeve and the spacer sleeve that have been installed in the housing of the direct-drive motor, thereby completing the installation of the direct-drive motor bearing, spacer sleeve and main shaft. The assembly device and method provided by the present invention can easily realize assembly and avoid friction between the various parts, thereby improving the accuracy of the direct-drive motor.

Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the assembly device of the direct drive motor of the present application;

[0020] Figure 2 A cross-sectional view of an assembly device for a direct-drive motor of the present application;

[0021] Figure 3 A cross-sectional view of an assembly device for a direct-drive motor of the present application;

[0022] Figure 4 This is a schematic diagram of the structure of the assembly device of the direct drive motor of the present application;

[0023] Figure 5 This is a cross-sectional view of an assembly device for a direct-drive motor of the present application. [Specific implementation method]

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] like Figure 1-5As shown, the direct-drive motor includes a direct-drive motor housing 10 and a motor bearing 20, a spacer sleeve 30 and a main shaft 90 to be assembled into the direct-drive motor housing 10. The assembly device of the direct-drive motor includes a fixing mechanism 1 for fixing the direct-drive motor housing 10 and a bearing assembly mechanism 2 for pushing the motor bearing 20 or the motor spacer sleeve 30 into the fixed direct-drive motor housing 10. Specifically, the bearing assembly mechanism 2 is a collision sleeve 21 that can be inserted into the direct-drive motor housing 10. The assembly process of the motor bearing 20 and the motor spacer 30 is as follows: first, the motor bearing 20 is placed at the front end assembly hole 40 of the direct-drive motor housing 10, and the collision sleeve 21 is aligned with the motor bearing 20 and then moved into the direct-drive motor housing 10 and pressed to the installation position to complete the installation of a motor bearing 20, and the above actions are repeated until the motor bearing 20 at the rear end is installed, and the motor spacer 30 is placed at the front end assembly hole 40 of the direct-drive motor housing 10, and the collision sleeve 21 is aligned with the motor spacer 30 and then moved into the direct-drive motor housing 10 and pressed to the installation position to complete the installation of the motor spacer 30, and the motor bearing 20 is placed at the front end assembly hole 40 of the direct-drive motor housing 10, and the collision sleeve 21 is aligned with the motor bearing 20 and then moved into the direct-drive motor housing 10 and pressed to the installation position to complete the installation of a motor bearing 20, and the above actions are repeated until the motor bearing 20 at the front end is installed. The above is the assembly of the motor bearing 20 and the motor spacer 30. It can be seen from the above that the assembly device of the direct drive motor provided by the present invention can easily install the motor bearing 20 and the motor spacer 30 into the direct drive motor housing 10, and the assembly process achieves low-wear installation and precision protection of the motor.

[0026] Furthermore, the collision sleeve 21 includes an assembly portion 211 and a connecting portion 212 disposed on the assembly portion 211. The assembly portion 211 is a hollow cylinder. The outer diameter of the assembly portion 211 is smaller than the aperture of the mounting hole of the direct drive motor housing, and the inner diameter of the collision sleeve 21 is larger than the inner diameter of the motor bearing 20 and the outer ring of the motor shaft sleeve. The assembly portion 211 adopts a hollow cylindrical structure, which reduces the overall weight of the assembly portion 211, facilitates the movement of the motor bearing 20 and the motor spacer 30 when pushing them into the DC motor housing 10, reduces the surface friction with the motor bearing 20 and the motor spacer 30, and further avoids wear during the assembly process.

[0027] Furthermore, the collision sleeve 21 is provided with a power mechanism 4 that drives the collision sleeve 21 to move so as to push the motor bearing 20 or the motor spacer 30 into the direct drive motor housing fixed on the fixing mechanism 1 and push it to the installation position. Specifically, the power mechanism 4 includes a sliding assembly 41 arranged on the fixing mechanism 1 and a motor that drives the sliding assembly 41 to slide along the fixing mechanism 1 to approach or move away from the direct drive motor housing fixed on the fixing mechanism 1, and the sliding assembly 41 is provided with the collision sleeve 21. This further improvement realizes the automation of installing the motor bearing 20 and the motor spacer 30 using the collision sleeve 21, improves the production efficiency and the accuracy of the operation, and further avoids the wear generated during the assembly process.

[0028] Further, the fixing mechanism 1 includes a base 11 and a fixing bracket 12 arranged on the base 11 for fixing the direct-drive motor housing 10, the direct-drive motor housing 10 and the fixing bracket 12 are fixed by threaded connection, the base 11 is provided with a slide rail 5, the sliding assembly 41 includes a sliding base 411 arranged on the slide rail 5 and sliding along the slide rail 5, the sliding base 411 is detachably connected with a collision sleeve connecting rod 412, the collision sleeve connecting rod 412 is provided with the collision sleeve 21, the collision sleeve connecting rod 412 is detachably connected to the sliding base 411 by screws, during the assembly process, with the increase of the motor bearing 20 and the motor spacer 30 assembled in the direct-drive motor housing 10, the moving stroke is shortened, and it is necessary to replace the collision sleeve connecting rod 412 of different lengths to realize the assembly of the motor bearing 20 and the motor spacer 30, and the collision sleeve 21 is detachably connected to the collision sleeve connecting rod 412 by screws. In summary, this structure is flexible and convenient.

[0029] Furthermore, the fixing mechanism 1 can be a part of a machining machine, and the power mechanism 4 is a power station arranged on the machining machine to cooperate with the assembled direct-drive motor to form a processing station. The assembly device of the above-mentioned direct-drive motor utilizes the original components of the machining machine to realize the installation of the motor bearing 20 and the motor spacer 30 of the direct-drive motor, with ingenious structure and low cost.

[0030] Furthermore, the power mechanism 4 includes a sliding assembly 41 arranged on the fixing mechanism 1 and a motor driving the sliding assembly 41 to slide along the fixing mechanism 1 to approach or move away from a direct drive motor housing fixed on the fixing mechanism 1, and the sliding assembly 41 is provided with the collision sleeve 21.

[0031] Further, after the motor bearing 20 and the motor spacer 30 of the direct drive motor are installed, the motor spindle 40 needs to be installed, and the installation of the motor spindle 40 is completed by pulling the motor spindle 40 into the assembly hole of the motor bearing 20 or / and the motor spacer 30 that have been assembled in the direct drive motor housing. Specifically, the spindle assembly mechanism 3 includes a pull rod 31 for detachably connecting with the motor spindle 40 and a spindle assembly component 32 that drives the pull rod 31 to move and pull the motor spindle 40 into the assembly hole of the motor bearing 20 or / and the motor spacer 30 that have been assembled in the direct drive motor housing. The pull rod 31 is detachably connected to the motor spindle 40 by screws. During the assembly process of the motor spindle 40, the pull rod 31 extends from the rear end mounting hole 100 of the direct drive motor housing 10 into the direct drive motor housing 10 and extends from the front end mounting hole 40 of the direct drive motor housing 10. The spindle assembly component 32 drives the pull rod 31 to move, so that the motor spindle 40 moves and is assembled into the assembly holes of the motor bearing 20 and the motor spacer 30, completing the installation of the motor spindle 40. A motor rotor 50 is provided on the motor spindle 40 at one end away from the pull rod 31. The motor rotor 5 is fixed to the motor spindle 40 through the shaft connection flange 60 and is located in the direct drive motor housing 10 when the motor spindle 40 is installed in place. As can be seen from the above, the assembly device of the direct drive motor provided by the present invention can easily install the motor spindle 40 into the assembly hole of the motor bearing 20 or / and the motor spacer 30 that has been assembled in the direct drive motor housing, and the assembly process realizes low-wear installation and precision protection of the motor.

[0032] Furthermore, the pull rod 31 is provided with an external thread, and the spindle assembly component 32 includes a nut 321 threadedly connected to one end of the pull rod 31 away from the motor spindle 40, and a sleeve 322 sleeved on the pull rod 31 is provided between the nut 321 and the direct drive motor housing, and the outer diameter of the sleeve 322 is slightly larger than the outer diameter of the inner ring of the front bearing group bearing, and the inner diameter is slightly larger than the inner diameter of the inner ring of the bearing, and it is pressed against the inner ring of the motor bearing 20, and the nut 321 is rotated to move the pull rod 31 along the axial direction of the motor spindle 40 so that the motor spindle 40 is assembled into the assembly hole of the motor bearing 20 or / and the motor spacer 30. The spindle assembly component 32 adopts this structure, which is simple in structure and low in wear.

[0033] The assembly method of the direct drive motor comprises the following steps:

[0034] S1: Fixing the direct drive motor housing 10;

[0035] S2: Use the bearing assembly mechanism to push the motor bearing 20 or the motor spacer 30 into the direct drive motor housing and press it to the installation position;

[0036] S3: Use the spindle assembly mechanism that can be detached and assembled with the motor spindle 40 to pull the motor spindle 40 into the direct drive motor housing and move it along the axial direction of the motor bearing 20 and the motor spacer 30 and assemble it into the assembly holes of the motor bearing 20 and the motor spacer 30.

[0037] Specifically, in step S1, the direct drive motor housing 10 is fixedly mounted on the base 11 by threaded connection with the fixing bracket 12, and the base 11 and the fixing bracket 12 may be components on a machining machine tool;

[0038] Specifically, in step S2, the motor bearing 20 is placed in the front end mounting hole 40 of the direct-drive motor housing 10, and after the assembly portion 211 of the collision sleeve 21 is aligned with the outer ring of the motor bearing 20, the collision sleeve 21 is pushed to push the motor bearing 20 into the direct-drive motor housing 10 and press it to the installation position, and the above steps are repeated until the rear end of the motor bearing 20 is installed. Then, the motor spacer sleeve 30 is placed in the front end mounting hole 40 of the direct-drive motor housing 10, and the collision sleeve 21 is pushed to push the motor spacer sleeve 30 into the direct-drive motor housing 10 and press it to the installation position. The motor bearing 20 is placed in the front end mounting hole 40 of the direct-drive motor housing 10, and after the assembly portion 211 of the collision sleeve 21 is aligned with the outer ring of the motor bearing 20, the collision sleeve 21 is pushed to push the motor bearing 20 into the direct-drive motor housing 10 and press it to the installation position, and the above steps are repeated until the front end of the motor bearing 20 is installed. The installation of the motor bearing 20 and the motor sleeve 30 is completed above;

[0039] Specifically, in step S3, the motor spindle 40 is connected to the pull rod 31 by means of screws, and the pull rod 31 extends from the rear end mounting hole 100 of the direct-drive motor housing 10 and extends from the front end mounting hole 40. After the pull rod 31 extends out of the direct-drive motor housing 10, it is threadedly connected with the nut 321, and the sleeve 322 is provided between the nut 321 and the direct-drive motor housing 10. By rotating the nut 321, the pull rod 31 can be moved along the axis of the pull rod 31 and the motor spindle 40 can be pulled into the assembly holes of the motor bearing 20 and the motor spacer 30 that have been assembled in the direct-drive motor housing, thereby completing the installation of the motor spindle 40. Furthermore, one end of the motor spindle 40 away from the pull rod 31 is fixed to the rotor 50 on the motor spindle 40 through the shaft connecting flange 60, and the rotor 50 is also installed in the direct-drive motor housing 10 when the motor spindle 40 is installed in place.

[0040] In summary, by adopting the above-mentioned direct-drive motor assembly method, the motor bearing 20, the motor spacer 30 and the motor spindle 40 can be easily installed into the direct-drive motor housing 10, and the assembly process achieves low-wear installation and precision protection of the motor.

[0041] It should be understood that the terms "first", "second", etc. are used in this application to describe various information, but this information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0042] As described above, one or more implementation methods are provided in combination with specific contents, and the specific implementation of this application is not limited to these descriptions. Any similarity or similarity with the method, structure, etc. of this application, or some technical deductions or replacements made based on the concept of this application should be considered as the protection scope of this application.

Claims

1. An assembly device for a direct drive motor, characterized in that: It comprises a fixing mechanism (1) for fixing the housing of a direct-drive motor and a bearing assembly mechanism (2) for pushing a motor bearing or a motor spacer into the fixed housing of the direct-drive motor; The bearing assembly mechanism (2) comprises a collision sleeve (21) for pushing the motor bearing or the motor spacer into the housing of the direct drive motor fixed on the fixing mechanism (1) and pushing it to the installation position; The collision sleeve (21) is provided with a power mechanism (4) for driving the collision sleeve (21) to move so as to push the motor bearing or the motor spacer into the direct drive motor housing fixed on the fixing mechanism (1) and push it to the installation position; The power mechanism (4) comprises a sliding assembly (41) arranged on the fixing mechanism (1) and a motor driving the sliding assembly (41) to slide along the fixing mechanism (1) to approach or move away from a direct drive motor housing fixed on the fixing mechanism (1), and the sliding assembly (41) is provided with the collision sleeve (21); It comprises a spindle assembly mechanism (3) for pulling the motor spindle into the assembly hole of the motor bearing or / and the motor spacer sleeve assembled in the direct drive motor housing; The collision sleeve (21) comprises an assembly portion (211) and a connecting portion (212) provided on the assembly portion (211).

2. The assembly device of the direct drive motor according to claim 1, characterized in that: The assembly portion (211) is a hollow cylinder, the outer diameter of the assembly portion (211) is smaller than the diameter of the mounting hole of the direct drive motor housing, and the inner diameter of the collision sleeve (21) is larger than the inner diameters of the motor bearing and the outer ring of the motor shaft sleeve.

3. The assembly device of the direct drive motor according to claim 1, characterized in that: The fixing mechanism (1) comprises a base (11) and a fixing bracket (12) arranged on the base (11) for fixing the housing of the direct drive motor, the base (11) is provided with a slide rail (5), the sliding assembly (41) comprises a sliding base (411) arranged on the slide rail (5) and sliding along the slide rail (5), the sliding base (411) is detachably connected to a collision sleeve connecting rod (412), and the collision sleeve connecting rod (412) is provided with the collision sleeve (21).

4. The assembly device of the direct drive motor according to claim 1, characterized in that: The spindle assembly mechanism (3) comprises a pull rod (31) for detachably connecting to the motor spindle and a spindle assembly component (32) for driving the pull rod (31) to move and pull the motor spindle into an assembly hole of a motor bearing or / and a motor spacer that has been assembled in a direct drive motor housing.

5. The assembly device of the direct drive motor according to claim 4, characterized in that: When the motor spindle is in the assembled state, the pull rod (31) is inserted into one end of the direct-drive motor housing and extends out from the opposite end of the direct-drive motor housing. The pull rod (31) is provided with an external thread. The spindle assembly component (32) includes a nut (321) threadedly connected to the end of the pull rod (31) away from the motor spindle. A sleeve (322) sleeved on the pull rod (31) is provided between the nut (321) and the direct-drive motor housing. The nut (321) is rotated to move the pull rod (31) along the axial direction of the motor spindle so that the motor spindle is assembled into the assembly hole of the motor bearing and / or the motor spacer.

6. A method for assembling a direct drive motor, applicable to an assembly device for a direct drive motor according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1: Fix the direct drive motor housing; S2: Use the bearing assembly mechanism to push the motor bearing or the motor spacer into the direct drive motor housing and press it to the installation position, and drive the collision sleeve to move by the motor to push the motor bearing or the motor spacer into the direct drive motor housing and fix it to the installation position; S3: Use a spindle assembly mechanism that can be detached and assembled from the motor spindle to pull the motor spindle into the direct drive motor housing and move it along the axial direction of the motor bearing and the motor spacer and assemble it into the assembly hole of the motor bearing and the motor spacer.

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