Miniature motor multi-specification spring coaxiality detection tool

Abstract

The utility model discloses a micro motor multi-specification spring coaxiality detection tool, which comprises a mounting seat and four detection rods, and is characterized in that the inner side of the bottom of the mounting seat is provided with an adjusting assembly; the adjusting assembly comprises a rotating plate, four sliding rails are arranged on the mounting seat, four arc-shaped rails are arranged on the rotating plate, a sliding block is arranged at the bottom of each detection rod, a cylindrical block is arranged at the bottom of each sliding block, and a supporting plate is arranged on each detection rod in a sliding mode. A worker observes and pushes the upper end and the lower end of a spring to detect the coaxiality of the spring, a servo motor drives a driving gear to rotate, a rotating plate is rotated through gear transmission, an arc-shaped rail pushes a cylindrical block and a sliding block to slide in a sliding rail, and detection rods on the periphery slide towards the inner side or the outer side at the same time. Therefore, coaxiality detection can be carried out on springs of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of spring coaxiality detection technology, specifically to a tooling for detecting the coaxiality of multi-specification springs of micro motors. Background Technology

[0002] In the production process of micro motors, the coaxiality of springs is one of the key indicators for measuring their quality. As an important elastic component inside the motor, whether the spring's axis coincides with the reference axis directly affects the smoothness of the motor's operation after assembly, power transmission efficiency, and overall service life. Therefore, rigorous coaxiality testing of springs is an indispensable step in ensuring that the performance of micro motors meets standards. With the diversification of micro motor applications, the specifications of their matching springs (such as diameter and length) are also becoming increasingly diverse. This requires testing fixtures that can adapt to the testing needs of springs of different specifications to match the flexible production mode of modern production lines.

[0003] However, existing testing technologies have obvious limitations. Some testing fixtures use a single cylindrical structure for coaxiality testing. This design can only be used for springs of specific specifications. When testing springs of different specifications, it is necessary to change the fixtures with the corresponding diameter and height, which not only prolongs the testing cycle but also significantly increases the cost of manual operation, causing certain inconveniences. Utility Model Content

[0004] The purpose of this invention is to provide a coaxiality testing fixture for multi-specification springs of micro motors, in order to solve the problem mentioned in the background art that when testing springs of different specifications, it is necessary to change the corresponding diameter and height fixtures.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fixture for detecting the coaxiality of multiple springs in a micro motor includes a mounting base and four detection rods. An adjustment component is provided on the inner side of the bottom of the mounting base.

[0007] The adjustment assembly includes a rotating plate, four slide rails on the mounting base, four arc-shaped rails on the rotating plate, a slider at the bottom of the detection rod, a cylindrical block at the bottom of the slider, and a support plate slidably mounted on the detection rod.

[0008] In a preferred embodiment of this utility model, the slider is slidably connected to the slide rail, and the cylindrical block is slidably connected to the arc-shaped rail.

[0009] In a preferred embodiment of this utility model, the rotating plate is rotatably mounted on the inner side of the bottom of the mounting base, and an external gear is provided at the bottom of the rotating plate.

[0010] In a preferred embodiment of this utility model, a servo motor is provided at the front bottom of the mounting base, and a drive gear is provided on the output end of the servo motor, which meshes with an external gear.

[0011] In a preferred embodiment of the present invention, a rectangular groove is provided at the rear bottom of the mounting base, and a rectangular plate is slidably disposed inside the rectangular groove.

[0012] In a preferred embodiment of this utility model, the top of the rectangular plate is provided with a locking tooth, which is detached and installed in the tooth groove of the external gear.

[0013] In a preferred embodiment of this utility model, an electric push rod is provided at the bottom of the rectangular groove, and the telescopic end of the electric push rod is connected to the rectangular plate.

[0014] In a preferred embodiment of this utility model, electric telescopic rods are provided on the left and right sides of the mounting base, and the top telescopic end of the electric telescopic rod is connected to a support plate.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0016] Beneficial effects: The springs are fitted onto the outside of the four detection rods. Operators observe and push the upper and lower ends of the springs to check their coaxiality. A servo motor drives the drive gear to rotate, which in turn rotates the rotating plate. This causes the arc-shaped rail to push the cylindrical block and slider to slide within the rail, allowing the detection rods to slide inwards or outwards simultaneously. This allows for coaxiality testing of springs of different specifications. An electric push rod pushes the locking teeth into the grooves of the external gear, fixing the position of the rotating plate. During spring testing, the bottom is supported by a support plate. An electric telescopic rod raises and lowers the support plate, adjusting the height of the detection rods above it to match the spring's height, bringing the top of the spring closer to the top of the detection rod for easy disassembly after testing.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1A schematic diagram of the main structure of a fixture for testing the coaxiality of multiple springs in a micro motor.

[0020] Figure 2 An exploded view of the mounting base in a fixture for testing the coaxiality of multiple springs in a micro motor.

[0021] Figure 3 A schematic diagram of the bottom structure of the mounting base in a fixture for testing the coaxiality of multiple springs in a micro motor.

[0022] Figure 4 A schematic diagram of the cross-sectional structure of the mounting base in a fixture for testing the coaxiality of multiple springs in a micro motor.

[0023] Figure 5 This is a schematic diagram of the bottom structure of the testing rod in a fixture for testing the coaxiality of multiple springs in a micro motor.

[0024] In the diagram: 1. Mounting base; 11. Detection rod; 12. Slide rail; 13. Slider; 14. Cylindrical block; 2. Rotating plate; 21. Arc rail; 22. External gear; 23. Servo motor; 24. Drive gear; 3. Rectangular groove; 31. Rectangular plate; 32. Electric push rod; 33. Clamping tooth; 34. Support plate; 4. Electric telescopic rod. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] Please refer to Figures 1-5 This utility model discloses a multi-specification spring coaxiality testing fixture for micro motors, comprising a mounting base 1 and four testing rods 11. The mounting base 1 is a mounting structure used to install other structures, and has support columns around its bottom to support the overall structure. The four testing rods 11 are testing structures, with springs sleeved on the outside of the four testing rods 11 for spring coaxiality testing. When the springs are sleeved on the outside of the four testing rods 11, the operator observes and pushes the upper and lower ends of the springs to test their coaxiality. The four testing rods 11 are equidistant from the center of the mounting base 1, and the testing rods 11 and their bottom structures are made of rigid materials.

[0027] An adjustment assembly is provided on the inner side of the bottom of the mounting base 1. The adjustment assembly includes a rotating plate 2, which is rotatably mounted on the inner side of the bottom of the mounting base 1. Four slide rails 12 are provided on the mounting base 1. A slider 13 is provided at the bottom of the detection rod 11. The slider 13 is slidably connected to the slide rail 12. Four arc-shaped rails 21 are provided on the rotating plate 2. A cylindrical block 14 is provided at the bottom of the slider 13. The cylindrical block 14 is slidably connected to the arc-shaped rail 21. A counterweight column is also provided at the bottom of the cylindrical block 14. Its function is to ensure that the weight on the upper and lower sides is the same, that is, to maintain balance. By rotating the rotating plate 2, the arc-shaped rails 21 push the cylindrical block 14 and the slider 13 to slide in the slide rails 12, so that the detection rods 11 on all sides slide inward or outward at the same time. This allows for the coaxiality detection of springs of different specifications.

[0028] An external gear 22 is located at the bottom of the rotating plate 2. A servo motor 23 is located at the front bottom of the mounting base 1. A drive gear 24 is located at the output end of the servo motor 23. The drive gear 24 meshes with the external gear 22, meaning that the servo motor 23 drives the drive gear 24 to rotate, thus causing the rotating plate 2 to rotate. The servo motor 23 rotates one tooth's distance each time. A rectangular groove 3 is located at the rear bottom of the mounting base 1. A rectangular plate 31 is slidably mounted inside the rectangular groove 3. A retaining tooth 33 is located on the top of the rectangular plate 31. The retaining tooth 33 is installed and removed from the tooth groove of the external gear 22. An electric push rod 32 is provided at the bottom of the groove 3. The telescopic end of the electric push rod 32 is connected to the rectangular plate 31. After the rotating plate 2 has rotated, the locking teeth 33 engage with the tooth groove of the external gear 22. The rectangular plate 31 is pushed by the electric push rod 32, so that the locking teeth 33 are inserted into the tooth groove of the external gear 22, thereby fixing the position of the rotating plate 2. All electrical equipment in the tooling is controlled by the same external computer PLC intelligent controller. Equipment that needs to be debugged in advance is debugged in advance. Equipment that needs to be powered by an external power supply is powered by an external power supply. This is a conventional technical method for those skilled in the art.

[0029] A support plate 34 is slidably mounted on the detection rod 11. When testing the spring, its bottom is supported by the support plate 34. Electric telescopic rods 4 are provided on the left and right sides of the mounting base 1. The top telescopic ends of the electric telescopic rods 4 are connected to the support plate 34. Both electric telescopic rods 4 are servo electric telescopic rods, and their lifting and lowering are synchronously controlled by a PLC intelligent controller. By driving the support plate 34 to lift and lower through the electric telescopic rods 4, the height of the detection rod 11 above the support plate 34 can be adjusted. This allows for adjustment according to the height of the spring, bringing the top of the spring closer to the top of the detection rod 11, which facilitates disassembly after testing. That is, when testing springs of the same height, the support plate 34 can be adjusted. If it is time-consuming to continuously adjust the support plate 34 when testing springs of different heights, no adjustment is needed; it can simply be adjusted to a suitable position.

[0030] The working principle of this utility model is as follows: The spring is sleeved on the outside of the four detection rods 11. The coaxiality is detected by the staff observing and pushing the upper and lower ends of the spring. The servo motor 23 drives the drive gear 24 to rotate, and the rotating plate 2 rotates through the gear transmission. This causes the arc-shaped rail 21 to push the cylindrical block 14 and the slider 13 to slide in the slide rail 12, so that the four detection rods 11 slide inward or outward at the same time. This allows the coaxiality of springs of different specifications to be detected. After the rotating plate 2 has rotated, the locking teeth 33 engage with the tooth groove of the external gear 22. The electric push rod 32 pushes the rectangular plate 31, so that the locking teeth 33 are inserted into the tooth groove of the external gear 22, thus fixing the position of the rotating plate 2. When the spring is being tested, its bottom is supported by the support plate 34. The electric telescopic rod 4 drives the support plate 34 to rise and fall, thereby adjusting the height of the detection rods 11 above the support plate 34. This adjusts the height according to the height of the spring, so that the top of the spring is close to the top of the detection rod 11, which facilitates disassembly after the test is completed.

[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A micro motor multi-specification spring coaxiality detection tool, characterized in that: It includes a mounting base (1) and four detection rods (11), and the mounting base (1) is provided with an adjustment component on the inner side of its bottom; The adjustment assembly includes a rotating plate (2), four slide rails (12) are provided on the mounting base (1), four arc-shaped rails (21) are provided on the rotating plate (2), a slider (13) is provided at the bottom of the detection rod (11), a cylindrical block (14) is provided at the bottom of the slider (13), and a support plate (34) is slidably provided on the detection rod (11).

2. The micro motor multi-specification spring coaxiality detection tool of claim 1, wherein, The slider (13) is slidably connected to the slide rail (12), and the cylindrical block (14) is slidably connected to the arc-shaped rail (21).

3. The micro motor multi-specification spring coaxiality detection tool of claim 1, wherein, The rotating plate (2) is rotatably mounted on the inner side of the bottom of the mounting base (1), and an external gear (22) is provided at the bottom of the rotating plate (2).

4. The micro motor multi-specification spring coaxiality detection tool of claim 3, wherein, A servo motor (23) is provided at the front bottom of the mounting base (1), and a drive gear (24) is provided on the output end of the servo motor (23). The drive gear (24) meshes with the external gear (22).

5. The micro motor multi-specification spring coaxiality detection fixture according to claim 3, characterized in that, A rectangular groove (3) is provided at the rear bottom of the mounting base (1), and a rectangular plate (31) is slidably disposed inside the rectangular groove (3).

6. The micro motor multi-specification spring coaxiality detection fixture according to claim 5, characterized in that, The rectangular plate (31) is provided with a locking tooth (33) on the top, and the locking tooth (33) is installed and removed in the tooth groove of the external gear (22).

7. The micro motor multi-specification spring coaxiality detection fixture according to claim 5, characterized in that, An electric push rod (32) is provided at the bottom of the rectangular groove (3), and the telescopic end of the electric push rod (32) is connected to the rectangular plate (31).

8. The micro motor multi-specification spring coaxiality detection fixture according to claim 1, characterized in that, Electric telescopic rods (4) are provided on the left and right sides of the mounting base (1), and the top telescopic end of the electric telescopic rods (4) is connected to the support plate (34).

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