Integrated motor encoder

Abstract

The utility model discloses an integrated motor encoder, which relates to the technical field of motor encoders and comprises a motor support, a motor is arranged on the inner side of the motor support, through a fixing mechanism, a sleeve rod can directly penetrate through a through hole and is inserted into the inner side of a fixing cylinder, so that the sleeve rod extrudes and pushes a clamping block to two sides, and when the clamping block corresponds to a clamping groove, the sleeve rod is fixed on the fixing cylinder. The clamping block is reset and inserted into the clamping groove, so that the sleeve rod is limited and fixed, the circuit board is fixed, the pull ring is twisted to drive the rotating rod and the extrusion block to rotate, the extrusion block pushes the transmission rod, the clamping block is driven to move out of the clamping groove in a transmission mode, the sleeve rod is pulled upwards, the circuit board can be disassembled, and the circuit board can be conveniently installed and disassembled so that later maintenance or replacement can be facilitated. The motor encoder is thin in thickness, light in weight, small in occupied space, beneficial to the trend of miniaturization and light weight, and higher in practicability; and through cooperation of a pull ring and a magnetic suction groove, the rotating rod can be limited, and the situation that the mounting effect of the circuit board is affected due to accidental rotation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of motor encoder technology, specifically an integrated motor encoder. Background Technology

[0002] A motor encoder is a device that encodes and converts signals or data into a signal form that can be used for communication, transmission, and storage. It is primarily used to measure and provide feedback on information such as the position, speed, and acceleration of a motor. It converts the physical quantities of the position and displacement of rotating parts into a series of digital pulse signals. These signals are acquired and processed by the control system to achieve precise control of the motor. Motor encoders are classified in several ways, mainly including incremental encoders and absolute encoders. The working principle of a motor encoder is based on photoelectric or magnetoelectric effects. Incremental encoders typically use the photoelectric conversion principle, detecting changes in the scale on the code disk through an LED light source and photosensitive elements, outputting two sets of pulse signals, A and B, and a reference pulse Z. Absolute encoders, on the other hand, read changes in the light-transmitting and opaque sector areas on the code disk, outputting a set of binary codes corresponding to the position. Motor encoders are widely used in industrial automation and control systems. They provide accurate position feedback, helping the control system achieve closed-loop control and improving the motion control accuracy and stability of the motor. Whether it is a servo motor, stepper motor, or other types of motor, the encoder can provide the necessary feedback information to ensure that the motor runs according to the expected motion trajectory and speed.

[0003] Currently, the code disk of most conventional encoders is usually mounted on the main shaft driven by the motor rotor. The encoder and motor assembly is thick and heavy, occupies a lot of space, which is not conducive to the trend of miniaturization and lightweighting, and its practicality is relatively poor. Utility Model Content

[0004] The purpose of this invention is to provide an integrated motor encoder to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated motor encoder, including a motor bracket, a motor is provided inside the motor bracket, a code disk is installed inside the motor, the rotor of the motor and the code disk are integrally formed, a circuit board is provided on the top of the motor bracket, a plurality of through holes are symmetrically opened on the top of the circuit board, a sleeve rod is provided through the inner side of the through holes, and a fixing mechanism connected to the sleeve rod is provided at symmetrical positions on the top of the motor bracket, the fixing mechanism includes a fixing cylinder, and mounting grooves are symmetrically opened on the top of the motor bracket, the fixing cylinder is disposed in the mounting groove.

[0006] Furthermore, the fixing mechanism also includes a slider. A first groove is symmetrically formed on the inner wall of the fixing cylinder. The slider is slidably installed within the first groove. A spring is provided on the side of the slider closest to the outer wall of the fixing cylinder. A transmission rod is connected to the bottom of the slider. A second groove is formed at the bottom of the first groove, and the transmission rod is located within the second groove. A locking block is connected to the end of the slider away from the spring. A locking groove adapted to the locking block is symmetrically formed on the outer wall of the sleeve rod. A rotating rod is rotatably installed inside the sleeve rod, penetrating the sleeve rod. A squeezing block is symmetrically formed at the lower end of the rotating rod, and the squeezing block is adapted to the transmission rod. A pull ring is rotatably connected to the upper end of the rotating rod. This fixing mechanism allows for convenient and quick connection and fixing of the circuit board to the motor bracket, and also facilitates the disassembly of the circuit board for later disassembly, repair, or replacement.

[0007] Furthermore, the cross-section of the card block is a right-angled trapezoid, and the two ends of the spring are fixedly connected to the slider and the inner wall of the slide groove, respectively. The code disk is provided with an index coarse code and an incremental fine code. The index coarse code is a code track composed of a series of non-uniform black and white stripes similar to a barcode, and the incremental fine code is a code track composed of a series of uniformly interlaced black and white stripes. The code disk is made of metal so that the sleeve rod can move down and squeeze to push the card block to both sides of the sleeve rod. When the card slot corresponds to the card block, the card block will be inserted into the card slot to fix the sleeve rod, making it easy to install.

[0008] Furthermore, the transmission rod is L-shaped, with an inclined surface at one end inside the fixed cylinder, and a semi-circular curved surface at the end of the extrusion block away from the rotating rod. The distance between the opposite outer ends of the two rotating rods is less than or equal to the diameter of the sleeve rod, so that the extrusion block can be used to squeeze and push the transmission rod, thereby driving the locking block to move, which facilitates the separation of the sleeve rod from the fixed cylinder.

[0009] Furthermore, the pull ring is made of magnetic material, and the top of the sleeve rod has a magnetic groove that matches the pull ring, so as to store and fix the pull ring and limit the rotation rod.

[0010] Furthermore, the inner wall of the mounting groove is provided with several internal threads, the outer wall of the fixing cylinder is provided with several external threads, the fixing cylinder is threadedly connected to the inner wall of the mounting groove, and the top of the fixing cylinder is provided with a hexagonal groove to facilitate disassembly and assembly. The hexagonal groove facilitates disassembly using a hexagonal wrench.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through a fixing mechanism, allows the sleeve rod to be directly passed through the through hole and inserted into the inside of the fixing cylinder, causing it to press and push the locking block to both sides. When the locking block aligns with the locking slot, it resets and inserts into the slot, thereby restricting and fixing the sleeve rod, thus completing the fixing of the circuit board. By twisting the pull ring, the rotating rod and the squeezing block rotate, causing the squeezing block to push the transmission rod, thereby driving the locking block to move out of the slot. Pulling up the sleeve rod allows the circuit board to be disassembled, facilitating its installation and disassembly for later maintenance or replacement. Furthermore, this motor encoder is thin, lightweight, and occupies little space, which is conducive to the trend of miniaturization and lightweighting, making it more practical.

[0013] 2. This utility model uses a pull ring and a magnetic groove to limit the rotation of the rotating rod, preventing it from rotating accidentally and affecting the installation effect on the circuit board. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a utility model Figure 1 A schematic diagram of a partial cross-sectional structure;

[0016] Figure 3 This is a utility model Figure 2 A magnified structural diagram of A in the middle;

[0017] Figure 4 This is a schematic diagram of the structure between the extrusion block and the transmission rod and the fixed cylinder of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure between the sleeve and the fixed sleeve of this utility model.

[0019] The following are the labels in the diagram: 1. Motor bracket; 2. Motor; 3. Encoder disk; 4. Circuit board; 5. Fixing cylinder; 6. Sleeve rod; 7. Rotating rod; 8. Extrusion block; 9. Slider; 10. Spring; 11. Locking block; 12. Transmission rod; 13. Slide groove one; 14. Slide groove two; 15. Locking groove; 16. Pull ring; 17. Magnetic groove; 18. Through hole. Detailed Implementation

[0020] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figure 1 - Figure 5As shown, this utility model provides a technical solution: an integrated motor encoder, including a motor bracket 1, a motor 2 is provided inside the motor bracket 1, a code disk 3 is installed inside the motor 2, the rotor of the motor 2 and the code disk 3 are integrally formed. In this example, the motor 2 is an axial motor, which is prior art, so it will not be described in detail. A circuit board 4 is provided on the top of the motor bracket 1, and several through holes 18 are symmetrically opened on the top of the circuit board 4. A sleeve rod 6 is provided through the inside of the through holes 18. A fixing mechanism connected to the sleeve rod 6 is provided at symmetrical positions on the top of the motor bracket 1. The fixing mechanism includes a fixing cylinder 5. The mounting groove is symmetrically opened on the top of the motor bracket 1, and the fixing cylinder 5 is set in the mounting groove. In this example, the fixing mechanism also includes a slider 9. The inner wall of the fixing cylinder 5 is symmetrically provided with a first groove 13. The slider 9 is slidably installed in the first groove 13. A spring 10 is provided on the side of the slider 9 near the outer wall of the fixing cylinder 5. A transmission rod 12 is connected to the bottom of the slider 9. A second groove 14 is provided at the bottom of the first groove 13. The transmission rod 12 is located in the second groove 14. A locking block 11 is connected to the end of the slider 9 away from the spring 10. The outer wall of the sleeve rod 6 is symmetrically provided with a locking groove 15 that matches the locking block 11. A rotating rod 7 that passes through the sleeve rod 6 is rotatably installed inside the sleeve rod 6. A squeezing block 8 is symmetrically provided at the lower end of the rotating rod 7, and the squeezing block 8 matches the transmission rod 12. A pull ring 16 is rotatably connected to the upper end of the rotating rod 7. The setting of the fixing mechanism can conveniently and quickly connect and fix the circuit board 4 to the motor bracket 1, and can conveniently disassemble the circuit board 4 for later disassembly, repair or replacement. In this example, the cross-section of the card block 11 is a right trapezoid. The two ends of the spring 10 are fixedly connected to the inner wall of the slider 9 and the slide groove 13, respectively. The code disk 3 is provided with index coarse code and incremental fine code. The index coarse code is a code track composed of a series of non-uniform black and white stripes similar to barcodes. The incremental fine code is a code track composed of a series of uniformly interlaced black and white stripes. In this example, the code disk 3 uses a combination of coarse code and fine code to encode the position. The position is determined by setting an M-sequence pattern on the grating as the coarse code. The output resolution is further improved by setting a uniformly distributed fine code on the grating. There is a special algorithm that can adapt the m-sequence pattern to a grating of any diameter by changing the parameters, increasing the flexibility of product design. The code disk 3 is made of metal, which improves the impact resistance compared to the traditional encoder using glass substrate, so that the sleeve rod 6 can move down and push the card block 11 to both sides of the sleeve rod 6. When the card slot 15 corresponds to the card block 11, the card block 11 will be inserted into the card slot 15 to fix the sleeve rod 6, making it easy to install. In this example, the transmission rod 12 is L-shaped, and one end of the transmission rod 12 located inside the fixed cylinder 5 has an inclined surface. The end of the extrusion block 8 away from the rotating rod 7 is a semi-circular curved surface. The distance between the opposite outer ends of the two rotating rods 7 is less than or equal to the diameter of the sleeve rod 6, so that the extrusion block 8 can be used to squeeze and push the transmission rod 12, thereby driving the locking block 11 to move, which facilitates the separation of the sleeve rod 6 from the fixed cylinder 5.

[0022] In this example, the pull ring 16 is made of magnetic material, and the top of the sleeve rod 6 has a magnetic groove 17 that matches the pull ring 16, so as to store and fix the pull ring 16 and limit the rotation rod 7. In this example, the inner wall of the mounting groove has several internal threads, and the outer wall of the fixing cylinder 5 has several external threads. The fixing cylinder 5 is threaded to the inner wall of the mounting groove. The top of the fixing cylinder 5 has a hexagonal groove to facilitate the installation and removal of the fixing cylinder 5. The hexagonal groove is designed to facilitate disassembly using a hexagonal wrench.

[0023] The working principle of this utility model is as follows: When the motor 2 is working, it drives the code disk 3 to rotate, causing the motor encoder to work. Through the integrated design of the motor 2 and the encoder, the encoder is thin, lightweight, and occupies little space, which is conducive to the trend of miniaturization and lightweighting. When installing and removing the circuit board 4, the fixing cylinder 5 can be installed into the mounting slot on the motor bracket 1 using a hex wrench. Then, the circuit board 4 is placed on the top of the motor bracket 1, and the lower end of the sleeve 6 is passed through the through hole 18 and inserted into the fixing cylinder 5. The sleeve 6 moves gradually in the fixing cylinder 5, which causes the lower end of the sleeve 6 to press against the inclined surface on the push block 11, thereby pushing the two blocks 11 to move the slider 9 into the first slide groove 13. The slider 9 will compress the spring 10, and at the same time, the slider 9 will drive the connected transmission rod 12 to move synchronously in the second slide groove 14 until the two blocks 11 move together. When the sleeve rod 6 is moved to the outside, and the slot 15 on the outer wall of the sleeve rod 6 is aligned with the locking block 11, the slider 9 will drive the locking block 11 to reset under the elastic force of the spring 10, so that the locking block 11 is inserted into the slot 15, thereby restricting and fixing the sleeve rod 6, thus completing the installation and fixing of the circuit board 4, making it easy to install; when disassembling the circuit board 4, the pull ring 16 can be lifted from the magnetic groove 17, and then the rotating rod 7 can be rotated by twisting the pull ring 16, so that the rotating rod 7 drives the squeezing block 8 to rotate synchronously, so that one end of the squeezing block 8 presses the inclined surface of one end of the transmission rod 12, thereby pushing the transmission rod 12 to drive the slider 9 to move, and then drive the locking block 11 to move out of the slot 15. Then, pull the pull ring 16 upward to remove the sleeve rod 6 from the through hole 18, thus realizing the disassembly of the circuit board 4, making it easy to install and disassemble, and convenient to disassemble, repair or replace the circuit board 4, making it more practical.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An integrated motor encoder, comprising a motor bracket (1), characterized in that: The motor bracket (1) has a motor (2) inside, and an encoder (3) is installed inside the motor (2). The rotor of the motor (2) and the encoder (3) are integrally formed. The motor bracket (1) has a circuit board (4) on top. The circuit board (4) has several through holes (18) symmetrically opened on top. A sleeve rod (6) is provided through the inside of the through holes (18). The motor bracket (1) has a fixing mechanism connected to the sleeve rod (6) at symmetrical positions on top. The fixing mechanism includes a fixing cylinder (5). The motor bracket (1) has mounting grooves symmetrically opened on top. The fixing cylinder (5) is set in the mounting groove.

2. The integrated motor encoder according to claim 1, characterized in that: The fixing mechanism also includes a slider (9). The inner wall of the fixing cylinder (5) is symmetrically provided with a first groove (13). The slider (9) is slidably installed in the first groove (13). The slider (9) is provided with a spring (10) on the side of the outer wall of the fixing cylinder (5). The bottom of the slider (9) is connected to a transmission rod (12). The bottom of the first groove (13) is provided with a second groove (14). The transmission rod (12) is located in the second groove (14). The end of the slider (9) away from the spring (10) is connected to a locking block (11). The outer wall of the sleeve rod (6) is symmetrically provided with a locking groove (15) that matches the locking block (11). The sleeve rod (6) is rotatably installed with a rotating rod (7) that passes through the sleeve rod (6). The lower end of the rotating rod (7) is symmetrically provided with a squeezing block (8), and the squeezing block (8) matches the transmission rod (12). The upper end of the rotating rod (7) is rotatably connected to a pull ring (16).

3. An integrated motor encoder according to claim 2, characterized in that: The cross-section of the card block (11) is a right trapezoid. The two ends of the spring (10) are fixedly connected to the inner wall of the slider (9) and the slide groove (13) respectively. The code disk (3) is provided with an index coarse code and an incremental fine code. The index coarse code is a code track composed of a series of non-uniform black and white stripes similar to barcodes. The incremental fine code is a code track composed of a series of uniformly interlaced black and white stripes. The code disk (3) is made of metal.

4. An integrated motor encoder according to claim 2, characterized in that: The transmission rod (12) is L-shaped, and one end of the transmission rod (12) located inside the fixed cylinder (5) has an inclined surface. The end of the extrusion block (8) away from the rotating rod (7) is a semi-circular curved surface. The distance between the opposite outer ends of the two rotating rods (7) is less than or equal to the diameter of the sleeve rod (6).

5. An integrated motor encoder according to claim 2, characterized in that: The pull ring (16) is made of magnetic material, and the top of the sleeve (6) is provided with a magnetic groove (17) that is compatible with the pull ring (16).

6. An integrated motor encoder according to claim 2, characterized in that: The inner wall of the mounting groove is provided with several internal threads, and the outer wall of the fixing cylinder (5) is provided with several external threads. The fixing cylinder (5) is threadedly connected to the inner wall of the mounting groove, and a hexagonal groove is opened on the top of the fixing cylinder (5).

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