A servo motor with a high-precision angle detection structure

Abstract

This invention discloses a servo motor with a high-precision angle detection structure, relating to the field of servo motor technology. The servo motor includes a servo motor body, a communication line at the upper end of the servo motor body, a servo motor output shaft on one side of the servo motor body, an output gear on the outer side of the output shaft, and an output shaft hole in the middle of the output shaft. This servo motor with a high-precision angle detection structure, through the protective structure, avoids the phenomenon of bolt stripping and breakage due to increased bolt force and numerous rotations, thus providing a better warning function. The angle detection structure is used to detect and identify the position of the identification post, thereby determining the degree of its angle, achieving a good angle detection effect. The buffer structure provides a good buffering effect during the installation of the servo motor body, making it more stable and preventing shaking during use.

Description

Technical Field

[0001] This invention relates to the field of servo motor technology, specifically a servo motor with a high-precision angle detection structure. Background Technology

[0002] A servo motor is an actuator used to control the rotation of an autopilot. However, existing servo motors have certain drawbacks in use. First, there is no structure to provide a warning during the connection between the servo motor output shaft and the output shaft hole. When the bolt force is large or the number of rotations is large, the bolt threads are prone to stripping and breaking, making installation and use inconvenient. Second, the rotation angle of the servo motor output shaft cannot be accurately detected during rotation, which is inconvenient for subsequent adjustment and reduces the efficiency of the servo motor itself. Finally, there is no good buffer structure during the installation of the servo motor itself, which makes it difficult to maintain stability during fixing. It is prone to shaking during use after installation. To address these issues, those skilled in the art have proposed a servo motor with a high-precision rotation angle detection structure. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a servo motor with a high-precision angle detection structure, thus solving the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a servo motor with a high-precision angle detection structure, comprising a servo motor body, a communication line at the upper end of the servo motor body, a servo motor output shaft on one side of the servo motor body, an output gear on the outer side of the servo motor output shaft, an output shaft hole in the middle of the servo motor output shaft, a protective structure inside the output shaft hole, an angle detection structure on one side of the servo motor body, a control board inside the servo motor body, a mounting plate on the outer side of the servo motor body, a mounting hole on one side of the mounting plate, and a buffer structure on one side of the mounting plate;

[0005] The protective structure includes a limiting groove, a spring is provided inside the limiting groove, a top plate is provided at one end of the spring, and a limiting block is provided on one side of the top plate;

[0006] The corner detection structure includes a connecting ring, an identification post on the outer side of the connecting ring, a fixing plate on one side of the servo body, and an infrared sensor on one side of the fixing plate.

[0007] As a further technical solution of the present invention, the servo motor body and the communication line are electrically connected, the servo motor body is provided with a power structure, the servo motor output shaft and the power structure are rotatably connected, and the servo motor output shaft is a cylindrical structure.

[0008] As a further technical solution of the present invention, the servo output shaft and the output gear are fixedly connected, the diameter of the output shaft hole is smaller than the diameter of the servo output shaft, the inner and outer surfaces of the output shaft hole are threaded, the servo body and the control board are electrically connected, the servo body and the mounting plate are fixedly connected, the mounting hole penetrates the outer side of the mounting plate, and the number of mounting holes is four sets arranged in an array.

[0009] As a further technical solution of the present invention, the diameter of the limiting groove is smaller than the diameter of the servo output shaft and larger than the diameter of the output shaft hole. The limiting groove and the output shaft hole are connected. The diameter of the spring is smaller than the diameter of the limiting groove. One end of the spring is fixedly connected to the limiting groove. The spring has four turns.

[0010] As a further technical solution of the present invention, the other end of the spring is fixedly connected to the spring, the top plate is a flat disc structure, the diameter of the top plate is larger than the diameter of the output shaft hole and smaller than the diameter of the limiting groove, the limiting block and the top plate are fixedly connected, and the limiting block is an elastic structure.

[0011] As a further technical solution of the present invention, the connecting ring and the servo output shaft are fixedly connected, the connecting ring is a circular ring structure, the connecting ring and the identification post are fixedly connected, the identification post is a cylindrical structure, and the number of identification posts is several groups distributed in a ring.

[0012] As a further technical solution of the present invention, the number of fixed plates is two sets and they are symmetrically distributed. The fixed plates are fixedly connected to the servo motor body, and the fixed plates are fixedly connected to the infrared sensors. The number of infrared sensors is two sets, and the infrared sensors are electrically connected to the control board.

[0013] As a further technical solution of the present invention, the buffer structure includes a pressure-reducing pad, a post is provided on one side of the pressure-reducing pad, a locking block is provided on one side of the post, a slot is provided on one side of the mounting plate, and a buffer post is provided inside the pressure-reducing pad.

[0014] As a further technical solution of the present invention, the number of pressure-reducing pads is four sets and they are arranged in an array. The pressure-reducing pads and the inserts are fixedly connected. The pressure-reducing pads are rubber structures, the inserts are cylindrical structures, the diameter of the locking block is larger than the diameter of the inserts, and the edge of the locking block is an arc-shaped structure.

[0015] As a further technical solution of the present invention, the side profile of the slot is a "T" shaped structure, the number of slots is equal to the number of inserts, the combination of the inserts and the card block is adapted to the slot, the number of buffer pillars is several groups and arranged in a ring, and the buffer pillars are elastic structures.

[0016] Beneficial effects

[0017] This invention provides a servo motor with a high-precision angle detection structure. Compared with the prior art, it has the following advantages:

[0018] 1. A servo motor with a high-precision angle detection structure, through the setting of the protective structure, during the use of the servo motor body, the user installs the corresponding auxiliary plate on the outside of the output gear and rotates it. The auxiliary plate is connected to the output shaft hole by bolts. When a reaction force is felt during the rotation of the bolt, after three rotations, the top plate is first contacted, so that the top plate is subjected to force. Under the action of the top plate, the spring is compressed, thereby driving the limit block to squeeze along the inner side of the limit groove until the limit block contacts the bottom of the limit groove. After three rotations, the auxiliary plate is fixed to the output gear, which avoids the phenomenon of stripping and breaking due to excessive force and rotation, and plays a better warning role.

[0019] 2. A servo motor with a high-precision angle detection structure. Through this structure, during servo motor operation, the user powers the servo motor via a communication line, and the infrared sensor is also powered. The positions of the infrared sensor and the identification post are initial values, and the distance between the identification posts is a known degree. When the power structure drives the output gear to rotate, it drives the connecting ring and the identification post to rotate. During the rotation of the identification post, the infrared sensor detects its position. When the output gear stops rotating, the position of the identification post is detected, and the angle is determined, achieving a good angle detection effect.

[0020] 3. A servo motor with a high-precision angle detection structure, through the setting of a buffer structure, during the installation of the servo motor body, the user moves the plug and the locking block along the inner side of the slot. During the movement, the locking block is squeezed and deformed until it is squeezed into the inside of the slot. Similarly, the remaining plugs and locking blocks are operated in the same way to fix the pressure relief pads. After the four sets of pressure relief pads are fixed, the servo motor body is connected and fixed to the corresponding mounting bracket. When the bolts are connected through the mounting holes, the pressure relief pads are squeezed during the tightening process, causing the buffer column to deform, which has a good buffering effect, making the fixation more stable and preventing shaking during use. Attached Figure Description

[0021] Figure 1 A schematic diagram of a servo motor with a high-precision angle detection structure;

[0022] Figure 2 A side sectional view of a servo motor with a high-precision angle detection structure;

[0023] Figure 3 A servo motor with a high-precision angle detection structure Figure 2 Enlarged view of B in the middle;

[0024] Figure 4 A servo motor with a high-precision angle detection structure Figure 1 Enlarged view of A in the middle;

[0025] Figure 5 This is a partial exploded view of a servo motor with a high-precision angle detection structure;

[0026] Figure 6 A servo motor with a high-precision angle detection structure Figure 5 Enlarged view of C;

[0027] Figure 7 This is a partial side sectional view of the mounting plate and decompression structure in a servo motor with a high-precision angle detection structure.

[0028] In the diagram: 1. Servo motor body; 2. Communication cable; 3. Servo motor output shaft; 4. Output gear; 5. Output shaft hole; 6. Protective structure; 61. Limiting groove; 62. Spring; 63. Top plate; 64. Limiting block;

[0029] 7. Corner detection structure; 71. Connecting ring; 72. Identification post; 73. Fixing plate; 74. Infrared sensor; 8. Control board; 9. Mounting plate; 10. Mounting hole; 11. Buffer structure; 111. Pressure relief pad; 112. Insert post; 113. Locking block; 114. Slot; 115. Buffer post. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-7This invention provides a servo motor technical solution with a high-precision angle detection structure 7: A servo motor with a high-precision angle detection structure 7 includes a servo motor body 1, a communication line 2 at the upper end of the servo motor body 1, a servo motor output shaft 3 on one side of the servo motor body 1, an output gear 4 on the outer side of the servo motor output shaft 3, an output shaft hole 5 in the middle of the servo motor output shaft 3, a protective structure 6 inside the output shaft hole 5, an angle detection structure 7 on one side of the servo motor body 1, a control board 8 inside the servo motor body 1, a mounting plate 9 on the outer side of the servo motor body 1, a mounting hole 10 on one side of the mounting plate 9, and a buffer on one side of the mounting plate 9. The impact structure 11 and the protective structure 6 include a limiting groove 61, a spring 62 is provided inside the limiting groove 61, a top plate 63 is provided at one end of the spring 62, and a limiting block 64 is provided on one side of the top plate 63. The corner detection structure 7 includes a connecting ring 71, an identification post 72 is provided on the outer side of the connecting ring 71, a fixing plate 73 is provided on one side of the servo body 1, an infrared sensor 74 is provided on one side of the fixing plate 73, the buffer structure 11 includes a pressure relief pad 111, a plug post 112 is provided on one side of the pressure relief pad 111, a locking block 113 is provided on one side of the plug post 112, a slot 114 is opened on one side of the mounting plate 9, and a buffer post 115 is provided inside the pressure relief pad 111.

[0032] Please see Figure 1-3 Furthermore, the servo motor body 1 and the communication line 2 are electrically connected. The servo motor body 1 has a power structure inside. The servo motor output shaft 3 and the power structure are rotatably connected. The servo motor output shaft 3 is a cylindrical structure. The servo motor output shaft 3 and the output gear 4 are fixedly connected. The diameter of the output shaft hole 5 is smaller than the diameter of the servo motor output shaft 3. The inner and outer surfaces of the output shaft hole 5 are threaded. The servo motor body 1 and the control board 8 are electrically connected. The servo motor body 1 and the mounting plate 9 are fixedly connected. The mounting holes 10 penetrate the outer side of the mounting plate 9. There are four sets of mounting holes 10 arranged in an array.

[0033] Please see Figure 2-3 The diameter of the limiting groove 61 is smaller than the diameter of the servo output shaft 3 but larger than the diameter of the output shaft hole 5. The limiting groove 61 and the output shaft hole 5 are connected. The diameter of the spring 62 is smaller than the diameter of the limiting groove 61. One end of the spring 62 is fixedly connected to the limiting groove 61. The spring 62 has four turns. The other end of the spring 62 is fixedly connected to the spring 62. The top plate 63 is a flat disc structure. The diameter of the top plate 63 is larger than the diameter of the output shaft hole 5 but smaller than the diameter of the limiting groove 61. The limiting block 64 is fixedly connected to the top plate 63. The limiting block 64 is an elastic structure.

[0034] Please see Figure 4The connecting ring 71 and the servo output shaft 3 are fixedly connected. The connecting ring 71 is a circular ring structure. The connecting ring 71 and the identification post 72 are fixedly connected. The identification post 72 is a cylindrical structure. There are several groups of identification posts 72 arranged in a ring. There are two groups of fixing plates 73 arranged symmetrically. The fixing plates 73 and the servo body 1 are fixedly connected. The fixing plates 73 and the infrared sensor 74 are fixedly connected. There are two groups of infrared sensors 74. The infrared sensors 74 and the control board 8 are electrically connected.

[0035] Please see Figure 5-7 There are four sets of pressure-reducing pads 111 arranged in an array. The pressure-reducing pads 111 and the inserts 112 are fixedly connected. The pressure-reducing pads 111 are made of rubber, and the inserts 112 are cylindrical. The diameter of the locking block 113 is larger than the diameter of the insert 112. The edge of the locking block 113 is arc-shaped. The side profile of the slot 114 is "T"-shaped. The number of slots 114 is equal to the number of inserts 112. The combination of the inserts 112 and the locking block 113 is compatible with the slots 114. There are several sets of buffer pillars 115 arranged in a ring. The buffer pillars 115 are elastic structures.

[0036] The working principle of the present invention is as follows: During the use of the servo motor body 1, the servo motor body 1 is fixed on the corresponding mounting bracket through the mounting plate 9, mounting hole 10 and buffer structure 11. The output gear 4 is fixed to the corresponding auxiliary plate through the cooperation of the output shaft hole 5 and the protective structure 6. Communication power is supplied through the communication line 2 to rotate the output gear 4, thereby enabling the use of the servo motor body 1.

[0037] It should be noted that, through the setting of the protective structure 6, during the use of the servo body 1, the user rotates the corresponding auxiliary plate installed on the outside of the output gear 4, and connects it to the output shaft hole 5 by bolts. When a reaction force is felt during the rotation of the bolt, after three rotations, it first contacts the top plate 63, causing the top plate 63 to be under force. Under the action of the top plate 63, the spring 62 is compressed, thereby driving the limit block 64 to squeeze along the inner side of the limit groove 61 until the limit block 64 contacts the bottom of the limit groove 61. After three rotations, the auxiliary plate is fixed to the output gear 4 to avoid the phenomenon of stripping and breaking due to increased force and too many rotations, thus playing a better warning role.

[0038] It should be noted that, through the setting of the angle detection structure 7, during the operation of the servo motor body 1, the user supplies power to the servo motor body 1 via the communication line 2, and the infrared sensor 74 is also powered. The positions of the infrared sensor 74 and the identification post 72 are initial values, and the distance between the identification post 72 and the sensor is a known degree. When the power structure drives the output gear 4 to rotate, it drives the connecting ring 71 and the identification post 72 to rotate. During the rotation of the identification post 72, the infrared sensor 74 detects the running position of the identification post 72. When the output gear 4 stops rotating, the position of the identification post 72 is detected, and the degree of its rotation angle is determined, thus achieving a good angle detection effect.

[0039] It should be noted that, through the setting of the buffer structure 11, during the installation of the servo body 1, the user moves the plug 112 and the locking block 113 along the inner side of the slot 114. During the movement, the locking block 113 is squeezed and deformed until it is squeezed into the interior of the slot 114. Similarly, the remaining plugs 112 and locking blocks 113 are operated in the same way to fix the pressure relief pad 111. After the four sets of pressure relief pads 111 are fixed, the servo body 1 is connected and fixed to the corresponding mounting bracket. When the bolt is connected through the mounting hole 10, the pressure relief pad 111 is squeezed during the tightening process, causing the buffer column 115 to deform, which plays a good buffering role, making the fixation more stable and preventing shaking during use.

Claims

1. A steering engine with a high-precision rotation angle detection structure, comprising a steering engine body (1), characterized in that, A communication line (2) is provided at the upper end of the servo motor body (1). A servo motor output shaft (3) is provided on one side of the servo motor body (1). An output gear (4) is provided on the outer side of the servo motor output shaft (3). An output shaft hole (5) is provided in the middle of the servo motor output shaft (3). A protective structure (6) is provided inside the output shaft hole (5). An angle detection structure (7) is provided on one side of the servo motor body (1). A control board (8) is provided inside the servo motor body (1). A mounting plate (9) is provided on the outer side of the servo motor body (1). A mounting hole (10) is opened on one side of the mounting plate (9). A buffer structure (11) is provided on one side of the mounting plate (9). The protective structure (6) includes a limiting groove (61), a spring (62) is provided inside the limiting groove (61), a top plate (63) is provided at one end of the spring (62), and a limiting block (64) is provided on one side of the top plate (63). The corner detection structure (7) includes a connecting ring (71), an identification post (72) is provided on the outside of the connecting ring (71), a fixing plate (73) is provided on one side of the servo body (1), and an infrared sensor (74) is provided on one side of the fixing plate (73). The buffer structure (11) includes a pressure-reducing pad (111), a plug (112) is provided on one side of the pressure-reducing pad (111), a locking block (113) is provided on one side of the plug (112), a slot (114) is provided on one side of the mounting plate (9), and a buffer post (115) is provided inside the pressure-reducing pad (111). The number of pressure-reducing pads (111) is four sets and they are arranged in an array. The pressure-reducing pads (111) and the inserts (112) are fixedly connected. The pressure-reducing pads (111) are rubber structures, the inserts (112) are cylindrical structures, the diameter of the locking block (113) is larger than the diameter of the inserts (112), and the edge of the locking block (113) is an arc-shaped structure. The side profile of the slot (114) is a "T" shaped structure. The number of slots (114) is equal to the number of inserts (112). The combination of the inserts (112) and the card block (113) is adapted to the slot (114). The number of buffer pillars (115) is several groups and they are distributed in a ring. The buffer pillars (115) are elastic structures.

2. The steering engine with high-precision rotation angle detection structure according to claim 1, characterized in that, The servo motor body (1) and the communication line (2) are electrically connected. The servo motor body (1) has a power structure inside. The servo motor output shaft (3) and the power structure are rotatably connected. The servo motor output shaft (3) is a cylindrical structure.

3. The steering engine with high-precision rotation angle detection structure according to claim 1, characterized in that, The servo output shaft (3) and the output gear (4) are fixedly connected. The diameter of the output shaft hole (5) is smaller than the diameter of the servo output shaft (3). The inner outer surface of the output shaft hole (5) is threaded. The servo body (1) and the control board (8) are electrically connected. The servo body (1) and the mounting plate (9) are fixedly connected. The mounting hole (10) penetrates the outer side of the mounting plate (9). There are four sets of mounting holes (10) arranged in an array.

4. The steering engine with high-precision rotation angle detection structure according to claim 1, characterized in that, The diameter of the limiting groove (61) is smaller than the diameter of the servo output shaft (3) and larger than the diameter of the output shaft hole (5). The limiting groove (61) and the output shaft hole (5) are connected. The diameter of the spring (62) is smaller than the diameter of the limiting groove (61). One end of the spring (62) is fixedly connected to the limiting groove (61). The spring (62) has four turns.

5. A servo motor with a high-precision angle detection structure according to claim 1, characterized in that, The other end of the spring (62) is fixedly connected to the spring (62). The top plate (63) is a flat disc structure. The diameter of the top plate (63) is larger than the diameter of the output shaft hole (5) and smaller than the diameter of the limiting groove (61). The limiting block (64) and the top plate (63) are fixedly connected. The limiting block (64) is an elastic structure.

6. A servo motor with a high-precision angle detection structure according to claim 1, characterized in that, The connecting ring (71) and the servo output shaft (3) are fixedly connected. The connecting ring (71) is a circular ring structure. The connecting ring (71) and the identification post (72) are fixedly connected. The identification post (72) is a cylindrical structure. The number of identification posts (72) is several groups and they are distributed in a ring.

7. A servo motor with a high-precision angle detection structure according to claim 1, characterized in that, The number of fixed plates (73) is two sets and they are symmetrically distributed. The fixed plates (73) are fixedly connected to the servo motor body (1). The fixed plates (73) are fixedly connected to the infrared sensors (74). The number of infrared sensors (74) is two sets. The infrared sensors (74) are electrically connected to the control board (8).

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