A rear cover positioning correction mechanism

Abstract

The utility model relates to motor assembly technical field, especially a rear end cover positioning correction mechanism, including angular orientation mechanism, correction mechanism, manipulator and carousel, angular orientation mechanism includes rotary drive mechanism, optical fiber sensor, tray, and optical fiber sensor is located one side at tray, and rotary drive mechanism drives the rotation of tray to carry out angular orientation, correction mechanism includes linear drive arrangement and end cap correction subassembly, and linear drive arrangement drives end cap correction subassembly to press down the bearing on the rear end cover on carousel correction, manipulator shifts rear end cover from angular orientation mechanism to carousel, and carousel rotates to make rear end cover flow to correction mechanism, the utility model discloses through motor rotation cooperation optical fiber sensor to the angular orientation of rear end cover, and through the cooperation of positioning pin, locating column and compression column to the bearing on rear end cover correction, satisfy the assembly condition of subsequent coil, base, rotor, improve the precision and efficiency of assembly.

Description

Technical Field

[0001] This utility model relates to the field of motor assembly technology, and in particular to a rear end cover positioning and correction mechanism. Background Technology

[0002] During motor assembly, the rear end cover is only centered when it is conveyed from the self-loading mechanism. However, this positioning method is far from meeting the precision requirements of the subsequent coil assembly stage. The coil assembly is an extremely sensitive process to position and angle. If the angular position of the rear end cover is inaccurate, it will directly lead to the coil not being installed precisely, thus affecting the overall product performance and quality. Therefore, to ensure the smooth assembly of the subsequent coil, the rear end cover must be angularly positioned. Meanwhile, the bearing, as a key component of the rear end cover, plays a crucial role in the product's stability and reliability due to its installation accuracy and operating condition. Therefore, the correction of the bearing position on the rear end cover is also essential. Utility Model Content

[0003] This utility model solves the problems in related technologies and proposes a rear end cover positioning and correction mechanism. The mechanism uses a motor rotation and a fiber optic sensor to position the end cover angularly. The bearing on the rear end cover is corrected by the cooperation of a positioning pin, a positioning column, and a clamping column. This improves the assembly accuracy, meets the assembly conditions of the subsequent coil, base, and rotor, reduces errors in the assembly process, and improves the subsequent assembly efficiency.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a rear end cover positioning and correction mechanism, comprising:

[0005] An angular positioning mechanism includes a rotary drive mechanism, an optical fiber sensor, and a tray. The optical fiber sensor is located on one side of the tray, and the rotary drive mechanism drives the tray to rotate for angular positioning.

[0006] The calibration mechanism includes a linear drive device and an end cap calibration assembly, wherein the linear drive device drives the end cap calibration assembly to press down and calibrate the bearing on the rear end cap of the turntable.

[0007] The robotic arm transfers the rear end cover from the corner to the positioning mechanism onto the turntable;

[0008] A turntable that rotates to allow the rear end cover to flow to the calibration mechanism.

[0009] As a preferred embodiment, the robotic arm includes a drive motor, a swing arm, a cam, an electric suction cup assembly, a gripper, a first guide rail, and a second guide rail. One end of the swing arm is connected to the drive motor, and the other end is mounted in a U-shaped groove on a cam plate via a cam. The first guide rail and the second guide rail are vertically arranged and slidably connected. The second guide rail is slidably connected to the cam. The electric suction cup assembly and the gripper are mounted on the cam plate via the first guide rail and the second guide rail.

[0010] As a preferred embodiment, the electric suction cup assembly and the gripper are mounted on the second guide rail via a connecting plate, and the second guide rail is slidably connected to the first guide rail and the cam via a slider.

[0011] As a preferred embodiment, the electric suction cup assembly includes an electric suction cup, a linear bearing, and a buffer mechanism, wherein the electric suction cup is connected to the linear bearing through the buffer mechanism.

[0012] As a preferred embodiment, the fiber optic sensor includes a first fiber optic sensor, a second fiber optic sensor, and a third fiber optic sensor. The first fiber optic sensor is mounted on a motor mounting plate via a sensor bracket, and the second and third fiber optic sensors are mounted on the sensor mounting plate. The first fiber optic sensor is used to detect the wire outlet hole, and the second and third fiber optic sensors are used to detect the flange.

[0013] As a preferred embodiment, the end cap correction assembly includes a positioning pin, a positioning post, and a clamping post mounted on the mounting plate. The positioning pin is located at the center of the mounting plate and is used for bearing position correction. The positioning post is matched with the positioning hole on the rear end cap. The clamping post is fitted with a spring and clamps the rear end cap under the drive of the linear drive device.

[0014] As a preferred embodiment, the turntable rotates under the drive of the turntable divider.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This utility model uses the rotation of the motor in conjunction with the fiber optic sensor to position the end cover in the angular direction, and uses the cooperation of the positioning pin, positioning column and clamping column to correct the bearing on the rear end cover, thereby improving the assembly accuracy, meeting the assembly conditions of the subsequent coil, base and rotor, reducing errors in the assembly process and improving the subsequent assembly efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the angular positioning mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the correction mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the robotic arm of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the rear end cover of this utility model.

[0021] In the picture:

[0022] 1. Angular positioning mechanism; 11. Rotary drive mechanism; 12. Fiber optic sensor; 121. First fiber optic sensor; 122. Second fiber optic sensor; 123. Third fiber optic sensor; 13. Tray; 14. Sensor mounting plate; 2. Calibration mechanism; 21. Linear drive device; 22. End cap calibration assembly; 221. Positioning pin; 222. Positioning column; 223. Pressing column; 224. Spring; 23. Mounting plate; 3. Turntable; 4. Robotic arm; 41. Drive motor; 42. Swing arm; 43. Cam; 44. Electric suction cup assembly; 441. Electric suction cup; 442. Linear bearing; 443. Buffer mechanism; 45. Gripper; 46. First guide rail; 47. Second guide rail; 48. Cam plate; 49. U-shaped groove; 410. Connecting plate; 5. Rear end cap; 51. Positioning hole; 52. Bearing; 53. Cable outlet hole; 54. Flanged edge; 6. Base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0026] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0027] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0028] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0029] like Figures 1 to 5 As shown, a rear cover positioning and correction mechanism includes an angular positioning mechanism 1, a correction mechanism 2, a robotic arm 4, and a turntable 3 mounted on a base 6. The angular positioning mechanism 1 includes a rotary drive mechanism 11, an optical fiber sensor 12, and a tray 13. The rotary drive mechanism 11 can be a motor, which is connected to the tray 13 via a planetary reducer to drive the tray 13 to rotate. The planetary reducer is mounted on a motor mounting plate. The rotary drive mechanism 11 drives the tray 13 to rotate and cooperates with the optical fiber sensor 12 for angular positioning. Specifically, the optical fiber sensor 12 includes a first optical fiber sensor 121, a second optical fiber sensor 122, and a third optical fiber sensor 123. The first optical fiber sensor 121 is mounted on the motor mounting plate via a sensor bracket. The second optical fiber sensor 122 and the third optical fiber sensor 123 are mounted on a sensor mounting plate 14. The sensor mounting plate 14 and the motor mounting plate are supported by four support columns. During detection, the motor drives the tray 13 to rotate. 3. The rotation mechanism first detects the position of the flange 54 using the second fiber optic sensor 122 and the third fiber optic sensor 123. When one fiber optic sensor is lit and the other is off, the angular positioning is achieved. Then, the position of the wire outlet hole 53 is detected by the first fiber optic sensor 121 (other openings on the outer periphery of the rear cover 5 are blocked by the edge of the tray 13, while a portion of the wire outlet hole 53 is exposed, which can be detected by the first fiber optic sensor 123). Finally, the angular positioning is achieved. After positioning, the signal is transmitted to the controller, which controls the motor to stop rotating. The robot arm 4 transfers the rear cover 5 from the angular positioning mechanism 1 to the turntable 3. The turntable 3 rotates to allow the rear cover 5 to flow to the correction mechanism 2 for correction. The correction mechanism 2 includes a linear drive device 21 and an end cover correction assembly 22. The linear drive device 21 uses a cylinder. The linear drive device 21 drives the end cover correction assembly 22 to press down and correct the bearing 52 on the rear cover 5 on the turntable 3.

[0030] In one embodiment, the robotic arm 4 is used to transfer the center-positioned rear end cover 5 to the angular positioning mechanism 1 and to transfer the angularly positioned rear end cover 5 to the turntable 3. The robotic arm 4 includes a drive motor 41, a swing arm 42, a cam 43, an electric suction cup assembly 44, a gripper 45, a first guide rail 46, and a second guide rail 47. One end of the swing arm 42 is connected to the drive motor 41, and the other end is mounted in a U-shaped groove 49 on the cam plate 48 via the cam 43. The first guide rail 46 and the second guide rail 47 are vertically arranged and slidably connected. The second guide rail 47 is slidably connected to the cam 43. The electric suction cup assembly 44 and the gripper 45 are connected via the first guide rail 46 and the second guide rail 47. Mounted on the cam plate 48, specifically, the electric suction cup assembly 44 and the gripper 45 are mounted on the second guide rail 47 via the connecting plate 410. The second guide rail 47 is slidably connected to the first guide rail 46 and the cam 43 via sliders. The drive motor 41 drives the swing arm 42 to move the cam 43 along the U-shaped groove 49, which in turn drives the electric suction cup assembly 44 and the gripper 45 to move via the first guide rail 46 and the second guide rail 47. The electric suction cup assembly 44 transfers the rear end cover 5, which has been centrally positioned, to the angular positioning mechanism 1 for angular positioning. After angular positioning, the gripper 45 transfers the rear end cover 5 to the turntable 3 for the next step of correction.

[0031] In one embodiment, the electric suction cup assembly 44 includes an electric suction cup 441, a linear bearing 442, and a buffer mechanism 443. The buffer mechanism 443 may be a buffer spring. The electric suction cup 441 is connected to the linear bearing 442 through the buffer mechanism 443. The buffer mechanism 443 can play a buffering role during the use of the electric suction cup 441 to prevent damage to the rear end cover 5.

[0032] In one embodiment, the end cap correction assembly 22 includes a positioning pin 221, a positioning post 222, and a clamping post 223 mounted on a mounting plate 23. The positioning pin 221 is located at the center of the mounting plate 23 and is used for the position correction of the bearing 52. The four positioning posts 222 are matched with the four positioning holes 51 on the rear end cap 5. The clamping post 223 is fitted with a spring 224 and clamps the rear end cap 5 under the drive of the linear drive device 21. When correction is performed, the cylinder drives the mounting plate 23 to move downward, so that the positioning post 222 is inserted into the positioning hole 51 on the rear end cap 5 for positioning, the clamping post 223 clamps the rear end cap 5, and the positioning pin 221 is inserted into the hole of the bearing 52 to achieve fine adjustment of the position of the bearing 52.

[0033] In one embodiment, the turntable 3 rotates under the drive of the turntable divider, thereby realizing the flow between various workstations.

[0034] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A rear end cover positioning and correction mechanism, characterized in that, include: An angular positioning mechanism (1) includes a rotary drive mechanism (11), an optical fiber sensor (12), and a tray (13). The optical fiber sensor (12) is located on one side of the tray (13), and the rotary drive mechanism (11) drives the tray (13) to rotate for angular positioning. The calibration mechanism (2) includes a linear drive device (21) and an end cap calibration assembly (22), wherein the linear drive device (21) drives the end cap calibration assembly (22) to press down and calibrate the bearing (52) on the rear end cap (5) on the turntable (3); The robotic arm (4) transfers the rear end cover (5) from the corner to the positioning mechanism (1) onto the turntable (3); Turntable (3) rotates to allow the rear end cover (5) to flow to the correction mechanism (2).

2. The rear cover positioning and correction mechanism according to claim 1, characterized in that: The robotic arm (4) includes a drive motor (41), a swing arm (42), a cam (43), an electric suction cup assembly (44), a gripper (45), a first guide rail (46), and a second guide rail (47). One end of the swing arm (42) is connected to the drive motor (41), and the other end is mounted in a U-shaped groove (49) on a cam plate (48) via the cam (43). The first guide rail (46) and the second guide rail (47) are vertically arranged and slidably connected. The second guide rail (47) is slidably connected to the cam (43). The electric suction cup assembly (44) and the gripper (45) are mounted on the cam plate (48) via the first guide rail (46) and the second guide rail (47).

3. The rear cover positioning and correction mechanism according to claim 2, characterized in that: The electric suction cup assembly (44) and the gripper (45) are mounted on the second guide rail (47) via a connecting plate (410). The second guide rail (47) is slidably connected to the first guide rail (46) and the cam (43) via a slider.

4. The rear cover positioning and correction mechanism according to claim 2, characterized in that: The electric suction cup assembly (44) includes an electric suction cup (441), a linear bearing (442), and a buffer mechanism (443). The electric suction cup (441) is connected to the linear bearing (442) through the buffer mechanism (443).

5. The rear cover positioning and correction mechanism according to claim 1, characterized in that: The fiber optic sensor (12) includes a first fiber optic sensor (121), a second fiber optic sensor (122), and a third fiber optic sensor (123). The first fiber optic sensor (121) is mounted on the motor mounting plate via a sensor bracket. The second fiber optic sensor (122) and the third fiber optic sensor (123) are mounted on the sensor mounting plate (14). The first fiber optic sensor (121) is used to detect the wire outlet hole (53), and the second fiber optic sensor (122) and the third fiber optic sensor (123) are used to detect the flange (54).

6. The rear cover positioning and correction mechanism according to claim 1, characterized in that: The end cap correction assembly (22) includes a positioning pin (221), a positioning post (222), and a clamping post (223) mounted on the mounting plate (23). The positioning pin (221) is located at the center of the mounting plate (23) and is used for the position correction of the bearing (52). The positioning post (222) is matched with the positioning hole (51) on the rear end cap (5). The clamping post (223) is fitted with a spring (224) and clamps the rear end cap (5) under the drive of the linear drive device (21).

7. The rear cover positioning and correction mechanism according to claim 1, characterized in that: The turntable (3) rotates under the drive of the turntable divider.

Images