Mounting mechanism, encoder and servo motor

Abstract

The invention provides a mounting mechanism, an encoder and a servo motor, the mounting mechanism is used for assembling the encoder, the encoder comprises a stator and a rotor, and the mounting mechanism comprises a main body used for being detachably connected with the stator; the mounting assembly is rotatably arranged on the main body, the mounting assembly comprises a matching part and a movable part, the movable part is arranged on the matching part and can move between a first position and a second position relative to the matching part, and a part of the matching part is exposed out of the main body; under the condition that the movable part is located at the first position, the part, exposed out of the main body, of the matching part abuts against the rotor, and the matching part can drive the rotor to rotate; and when the movable part is located at the second position, a gap is formed between the part, exposed out of the main body, of the matching part and the rotor.

Description

Technical Field

[0001] The present invention relates to the technical field of encoders, and in particular to a mounting mechanism, an encoder and a servo motor. Background Art

[0002] At present, common photoelectric encoders are of two types: integral type and split type. The main difference between the two is that the split encoder body does not contain bearings. It has the advantages of simple structure, low cost, small size, flexible installation, higher resolution, higher anti-interference, etc.

[0003] In order to improve the installation accuracy of the split encoder in the related art, the separated stator and rotor are generally fixed together during the production of the encoder through some structures, such as screws, limit blocks, limit grooves, etc., and then installed to the motor.

[0004] However, in the process of realizing the encoder stator and rotor as a whole, it needs to be disassembled and assembled many times, which increases the working hours and is inefficient. At the same time, in order to facilitate installation and disassembly, the shaft, hole, and stopper adopt clearance fit, which loses a lot of original alignment accuracy. Moreover, during the multiple disassembly and assembly processes, the code disk is easily contaminated and affects the output signal, resulting in inconvenience in operation. Summary of the invention

[0005] The embodiments of the present invention are intended to solve at least one of the technical problems existing in the prior art.

[0006] To this end, a first aspect of an embodiment of the present invention provides a mounting mechanism.

[0007] A second aspect of an embodiment of the present invention provides an encoder.

[0008] A third aspect of an embodiment of the present invention provides a servo motor.

[0009] In view of this, according to a first aspect of an embodiment of the present invention, a mounting mechanism is provided, which is used to assemble an encoder, the encoder comprising a stator and a rotor, and the mounting mechanism comprising: a main body, the main body being used to detachably connect the stator; a mounting assembly rotatably disposed on the main body, the mounting assembly comprising a mating part and a movable part, the movable part being disposed on the mating part and being able to move between a first position and a second position relative to the mating part, and a portion of the mating part being exposed from the main body; wherein, when the movable part is located at the first position, the portion of the mating part exposed from the main body is against the rotor, and the mating part can drive the rotor to rotate; when the movable part is located at the second position, there is a gap between the portion of the mating part exposed from the main body and the rotor.

[0010] The mounting mechanism provided in the embodiment of the present invention includes a main body and a mounting assembly. Specifically, the mounting mechanism is used to assemble an encoder. It can be understood that the encoder includes a stator and a rotor, that is, the assembly and alignment of the stator and the rotor are achieved through the mounting mechanism.

[0011] The mounting assembly is arranged on the main body, and the mounting assembly can rotate relative to the main body. The mounting assembly includes a matching piece and a movable piece. Specifically, the movable piece is arranged on the matching piece, and the movable piece can move between a first position and a second position relative to the matching piece, so that the part of the matching piece exposed from the main body abuts against or has a gap with the rotor, thereby realizing the assembly and alignment between the stator of the encoder and the rotor of the encoder, ensuring the alignment accuracy, and effectively reducing the number of disassembly and assembly during the assembly process of the stator and rotor of the encoder, thereby improving the installation efficiency.

[0012] It is understandable that the stator includes a bracket, a circuit board and a photocell, and the photocell is arranged on the side of the circuit board facing the bracket. A photocell track is arranged on the photocell. The rotor includes a code disc and a code disc support, and a code disc track is arranged on the code disc. In the process of fixing the stator and the rotor, the photocell track and the code disc track need to be aligned. In other words, the mounting mechanism can realize the alignment of the photocell track and the code disc track while realizing the connection between the stator and the rotor.

[0013] Specifically, when assembling the encoder, the bracket is first connected and fixed to the main body, wherein the bracket and the main body can be detachably connected by multiple screws. Then, after placing the rotor, the circuit board is placed on the bracket. At this time, the circuit board is not fixed first, and the movable part is moved to the first position so that the matching part and the rotor are against each other, and the matching part drives the rotor to rotate relative to the stator to check the alignment of the photocell track and the code disc track, and detect whether there is deviation during the rotation of the rotor.

[0014] After the code disc track and the photocell track are aligned neatly, fix the circuit board on the bracket. Next, connect the rotor and the stator, that is, fix the bracket and the code disc support. After completion, disconnect the bracket from the main body, and move the movable part to the second position, so that there is a gap between the matching part and the rotor, that is, the matching part is disengaged from the rotor, and the encoder is removed from the mounting mechanism, thereby realizing the overall assembly of the split encoder. While meeting the alignment requirements of the code disc and the photocell, it effectively reduces the number of disassembly and assembly, improves installation efficiency, and prevents the code disc from being contaminated during the assembly of the rotor and stator, which affects the output signal, thereby ensuring the performance of the split encoder.

[0015] In addition, the mounting mechanism can also be used to perform the alignment installation of the code disc and the code disc holder. Specifically, after the bracket is connected to the main body, the code disc holder is placed on the part of the matching piece exposed outside the main body, the movable part is moved to the first position, the matching piece and the code disc holder are abutted against each other to fix the code disc holder, and the code disc and the code disc holder are aligned and installed under an optical magnifying glass and with the help of external tooling. During this process, the matching piece can drive the code disc holder to rotate, and the accuracy can be checked while alignment to ensure that the concentricity of the code disc holder and the code disc is within 5μm, that is, the center of the code disc track is adjusted to coincide with the rotation center of the code disc holder as much as possible.

[0016] After the code disc and the code disc support are aligned and installed, the circuit board is placed on the bracket and the code disc track and the photocell track are aligned. That is to say, in the entire encoder assembly process, only one disassembly and assembly can be performed, thereby ensuring the code disc concentricity requirements and the alignment requirements of the code disc and the photocell during the encoder production process, while minimizing the number of disassembly and assembly times, reducing the disassembly and assembly hours, improving the encoder assembly efficiency, reducing the encoder production cost, and ensuring the alignment accuracy.

[0017] It can be understood that the split encoders in the related art generally include two types:

[0018] The first type is the encoder stator and encoder rotor, which are used as two parts when installing the servo motor. Specifically, the encoder rotor is installed first, the tooling is used to control the rotor axial height, the motor shaft diameter is used to control the radial deviation, and then the encoder stator is installed. The motor needs to process the stopper on the encoder stator installation surface to ensure the concentricity of the encoder stator and rotor as much as possible.

[0019] However, this assembly method completely relies on the stop and assembly of the motor shaft and encoder mounting surface, resulting in poor production consistency.

[0020] The second type is that the encoder stator and rotor are fixed together by some structures, such as screws, limit blocks, limit grooves, etc. during encoder production. The special alignment platform or tooling of the production line is used to achieve precise alignment. No secondary positioning is required when installing the motor, and the relative position accuracy of the encoder stator and rotor is not completely dependent on the motor shaft size processing accuracy and stop. This encoder is usually called an integral or integrated split encoder. It is understandable that the installation accuracy of this assembly method is significantly better than the first one.

[0021] That is to say, the present application connects the stator and the rotor and then installs the encoder on the servo motor. Compared with the related art of installing the stator and the rotor on the servo motor separately, this can improve the installation accuracy of the encoder and ensure production consistency.

[0022] Optionally, the rotor further comprises a matching hole, which is arranged on the code disc support. When the encoder is assembled, the part of the matching piece exposed from the main body is located in the matching hole and is tightened or loosened with the inner wall of the matching hole. It is understandable that after the encoder is assembled, when the encoder is installed with the servo motor, the motor shaft of the servo motor is connected to the matching hole.

[0023] Optionally, after the photocell and the code disc are aligned, the bracket and the circuit board can be fixedly connected by screws or glue.

[0024] It is worth mentioning that the split photoelectric encoder refers to a type of rotary servo motor feedback device. Its characteristics are that the encoder body does not contain bearings, and the encoder stator and rotor are divided into two parts and installed together on the servo motor, which is different from the integrated or integral encoder.

[0025] The code disk refers to the moving grating of the photoelectric encoder, which consists of transparent and opaque concentric fan-shaped patterns, which produce alternating light and dark stripes when rotating under light.

[0026] In addition, the installation mechanism provided by the above technical solution of the present invention also has the following additional technical features:

[0027] In some technical solutions, optionally, the mounting mechanism further includes an elastic member, two ends of which are respectively connected to the movable member and the matching member, and the elastic member can reset the movable member after moving.

[0028] In this technical solution, it is defined that the installation mechanism also includes an elastic part. Specifically, one end of the elastic part is connected to the movable part, and the other end is connected to the mating part. The elastic part can reset the movable part after moving, thereby further improving the convenience of the encoder assembly process, improving the assembly efficiency, and reducing the production cost of the encoder.

[0029] Specifically, when the movable member moves from the first position to the second position, the elastic member undergoes elastic deformation, or when the movable member moves from the second position to the first position, the elastic member undergoes elastic deformation. The elastic member may be compressed or stretched. The specific configuration may be based on actual needs.

[0030] Optionally, after the bracket and the code disc support are fixedly connected, the bracket is disconnected from the main body, and the movable part is moved to the second position so that there is a gap between the part of the mating part exposed outside the main body and the rotor. At this time, the elastic part is compressed, and after the assembled encoder is removed from the main body, the movable part automatically returns to the first position under the action of the elastic part, thereby realizing automatic resetting of the movable part after movement.

[0031] It can be understood that after the bracket is fixedly connected to the main body, when the rotor is placed, the part of the fitting exposed outside the main body is inserted into the fitting hole on the code disc support. At this time, the movable part can be moved to the second position so that there is a gap between the fitting and the inner wall of the fitting hole. Under the action of gravity, the rotor makes the side of the code disc support close to the main body fit with the bearing surface of the main body facing the rotor. At this time, the elastic part is compressed.

[0032] Release the movable part, and under the action of the elastic part, the movable part automatically moves to the first position so that the part of the matching part exposed from the main body abuts against the inner wall of the matching hole, ensuring effective cooperation between the matching part and the rotor, and then the matching part can drive the rotor to rotate relative to the stator, so as to realize the alignment accuracy inspection of the code disk track and the photocell track.

[0033] Optionally, the elastic member includes a spring or a tension spring.

[0034] In some technical schemes, optionally, the mating part includes a plurality of blades, the plurality of blades are exposed from the main body and enclosed to form a mating cavity, and the movable part can move into or out of the mating cavity; wherein, when the movable part is located in a first position, the movable part moves into the mating cavity, and the plurality of blades move in a direction away from the mating cavity, so that the plurality of blades are against the rotor on one side away from the mating cavity; and when the movable part is located in a second position, the movable part moves out of the mating cavity, and the plurality of blades move in a direction close to the mating cavity, so that there is a gap between the plurality of blades and the rotor on one side away from the mating cavity.

[0035] In this technical solution, it is defined that the mating part includes a plurality of blades. Specifically, the plurality of blades are exposed from the main body, and the plurality of blades are enclosed to form a mating cavity. That is to say, in the process of the movable part moving into or out of the mating cavity, the plurality of blades are against the rotor or there is a gap between the plurality of blades and the rotor, even if the mating holes of the plurality of blades and the rotor are tightened or loosened.

[0036] Specifically, when assembling the encoder, the bracket is first connected and fixed to the main body, and then, after placing the rotor, the circuit board is placed on the bracket. At this time, the circuit board is not fixed first, and the movable part is moved to the first position, that is, a part of the movable part extends into the matching cavity, so that the multiple blades move outward, so that the multiple blades are against the rotor, that is, the multiple blades are tightly supported in the matching hole of the rotor, so that the matching part can drive the rotor to rotate relative to the stator, so as to perform an alignment check between the photocell track and the code disc track, and detect whether there is any deviation during the rotation of the rotor.

[0037] After the code disc track and the photocell track are aligned, the circuit board is fixed on the bracket. Next, the rotor and the stator are connected, that is, the bracket and the code disc support are fixedly connected. After completion, the bracket is disconnected from the main body, and the movable part is moved from the first position to the second position, that is, a part of the movable part is moved out of the matching cavity, and the multiple blades move inward, and there is a gap between the multiple blades and the rotor, that is, there is a gap between the multiple blades and the inner wall of the matching hole, so that the encoder can be removed from the mounting mechanism, thereby realizing the overall assembly of the split encoder.

[0038] In some technical solutions, optionally, a side surface of at least one blade facing away from the matching cavity is constructed as an arc-shaped surface.

[0039] In this technical solution, a side surface of at least one blade facing away from the mating cavity is constructed as an arc-shaped surface. It can be understood that the rotor includes a mating hole arranged on the code disc support. When the encoder is assembled and installed on the servo motor, the motor shaft of the servo motor is connected to the mounting hole, that is, the inner wall of the mounting hole is an arc-shaped surface.

[0040] By setting the side surface of at least one blade facing away from the mating cavity as an arc-shaped surface, the mating strength between at least one blade and the inner wall of the mating hole can be improved when the movable part is in the first position, so that at least one blade is firmly supported in the mating hole, thereby ensuring that the mating part can drive the rotor to rotate relative to the stator, so as to carry out the alignment check of the photocell track and the code disk track, and detect whether there is any deviation during the rotation of the rotor.

[0041] Optionally, a side surface of each blade facing away from the matching cavity is configured as an arc-shaped surface.

[0042] In some technical solutions, optionally, the matching part also includes a body, the body is provided with a cavity, the cavity is connected to the matching cavity, the movable part can be movably arranged in the cavity, the first ends of the multiple blades are arranged on the body, and the second ends of the multiple blades can move relative to the body.

[0043] In this technical solution, it is defined that the matching piece also includes a body, specifically, the body is provided with a cavity, and the cavity is connected to the matching cavity. The movable piece can be movably arranged in the cavity, thereby providing installation and activity space for the movable piece, which is conducive to reducing the space occupied by the installation mechanism.

[0044] One end of the multiple blades is set on the main body, and the other end can move outward or inward when a part of the movable part extends into or moves out of the matching cavity, so as to control the tightening or loosening of the multiple blades and the rotor according to the actual needs in the assembly process, thereby effectively reducing the number of disassembly and assembly times and improving the installation efficiency while meeting the alignment requirements of the code disk and the photocell.

[0045] Specifically, when assembling the encoder, the bracket is first connected and fixed to the main body, and then, after placing the rotor, the circuit board is placed on the bracket. At this time, the circuit board is not fixed first, and the movable part is moved to the first position, that is, a part of the movable part extends into the matching cavity, so that the second ends of the multiple blades move outward, and the multiple blades are against the rotor, that is, the multiple blades are tightened in the matching hole of the rotor, so that the matching part can drive the rotor to rotate relative to the stator, so as to perform an alignment check between the photocell track and the code disc track, and detect whether there is any deviation during the rotation of the rotor.

[0046] After the code disc track and the photocell track are aligned, the circuit board is fixed on the bracket. Next, the rotor and the stator are connected, that is, the bracket and the code disc support are fixedly connected. After completion, the bracket is disconnected from the main body, and the movable part is moved from the first position to the second position, that is, a part of the movable part is moved out of the matching cavity, so that the second ends of the multiple blades move inward, and there is a gap between the multiple blades and the inner wall of the matching hole, so that the encoder can be removed from the mounting mechanism, thereby realizing the overall assembly of the split encoder.

[0047] In some technical solutions, optionally, the movable part includes a handle and a movable part, wherein at least a portion of the handle is exposed outside the cavity, the movable part is connected to one end of the handle facing the matching cavity and is located in the cavity, and the movable part can move into or out of the matching cavity.

[0048] In this technical solution, the movable part is defined to include a handle and a movable portion. Specifically, at least a portion of the handle is exposed outside the cavity so that the movable portion can be moved into or out of the matching cavity by pulling the handle, thereby causing multiple blades to abut against or have a gap with the rotor.

[0049] Moreover, by turning the handle or the body, the rotor can be driven to rotate relative to the stator to check the alignment of the photocell track and the code disc track. While meeting the alignment requirements of the code disc and the photocell, it effectively reduces the number of disassembly and assembly, improves installation efficiency, prevents the code disc from being contaminated during the assembly of the rotor and stator and affects the output signal, and ensures the performance of the split encoder.

[0050] Optionally, an outer wall of the movable part is provided with an external thread, an end of the handle facing the movable part is provided with a first connecting hole, and an internal thread is provided in the first connecting hole, that is, the movable part and the handle are fixedly connected by threaded cooperation.

[0051] Optionally, the outer wall of the movable part is further provided with a stop shoulder, one end of the elastic member is connected to the stop shoulder, and the other end is connected to the matching member.

[0052] In some technical solutions, optionally, the fitting also includes a guide hole, which is provided in the main body and communicated with the cavity, and the handle can move in the guide hole.

[0053] In this technical solution, it is defined that the mating part also includes a guide hole. Specifically, the guide hole is arranged on the main body, and the guide hole is connected to the cavity. The handle can move in the guide hole, that is, the moving path of the handle is limited, ensuring that the movable part can be driven to move into or out of the mating cavity during the movement of the handle relative to the main body, thereby ensuring that multiple blades can be against the rotor or have a gap, thereby realizing rapid assembly and alignment inspection of the split encoder, and improving the installation accuracy and efficiency of the split encoder.

[0054] In some technical schemes, optionally, the main body includes a rotating shaft and a handle seat, wherein the first ends of the plurality of blades are arranged on the rotating shaft, the rotating shaft is provided with a cavity, a part of the handle seat is arranged in the cavity and connected to the rotating shaft, and the handle is movably arranged on the handle seat.

[0055] In this technical solution, it is defined that the main body includes a rotating shaft and a handle seat. Specifically, the first ends of the plurality of blades are arranged on the rotating shaft, a part of the handle seat is arranged in the cavity, and the handle seat is connected to the rotating shaft.

[0056] The handle is arranged on the handle seat, and the handle can move relative to the handle seat to drive the movable part to move into or out of the matching cavity, thereby enabling the plurality of blades to abut against the rotor or have a gap.

[0057] Optionally, the inner wall of the cavity where the rotating shaft is located is provided with an internal thread, and the outer wall of the handle seat is provided with an external thread, that is, the rotating shaft and the handle seat are fixedly connected by threaded cooperation.

[0058] Optionally, the outer wall of the rotating shaft is provided with a limiting plane, and the limiting plane of the rotating shaft can be clamped by an external tooling, and then the rotating shaft is connected to the handle seat, so as to further improve the installation efficiency.

[0059] It can be understood that the guide hole is arranged on the handle seat, that is, the handle extends out of the cavity through the guide hole.

[0060] In some technical solutions, optionally, the main body is further provided with a notch, and along the axial direction of the mounting assembly, the notch is used to be opposite to the code disc of the rotor.

[0061] In this technical solution, it is defined that the main body is also provided with a notch. Specifically, the notch penetrates the main body axially, and the notch is opposite to the code disk. It can be understood that when assembling the encoder, the stator and the rotor are both located above the main body, and along the axial direction of the mounting assembly, the circuit board is located above the rotor, that is, the photocell is opposite to the code disk, and the photocell is located on the side of the code disk away from the notch.

[0062] By setting a notch on the main body, when the mounting mechanism and the encoder are placed on the platform of the optical magnifier, the optical magnifier can be used to observe the alignment of the code disc track on the code disc and the photocell track on the photocell through the notch when the matching parts drive the rotor to rotate relative to the stator, thereby realizing the function of aligning and detecting accuracy at the same time.

[0063] It can be understood that a photocell refers to a photoelectric conversion component that converts light signals into electrical signals.

[0064] An optical magnifier refers to a device with a magnifying function. This application is used to observe the photocell track and the code disc track after magnification. Specifically, within the observation field of the optical magnifier, the photocell track and the code disc track are aligned to achieve precise alignment. At the same time, the rotor can be driven to rotate relative to the stator through the matching parts to detect whether there is a deviation in the track within 360° in a circle, so as to determine whether the alignment meets the requirements.

[0065] In some technical solutions, optionally, a convex rib is provided on the end surface of the main body, and at least a portion of the convex rib extends along the circumferential direction of the mounting assembly for matching with the stator.

[0066] In this technical solution, it is defined that a convex rib is provided on the end face of the main body. Specifically, at least a portion of the convex rib extends along the circumferential direction of the mounting assembly, and the convex rib is used to cooperate with the stator, thereby limiting the position relative to the stator in the radial direction, ensuring the concentricity of the stator and the rotor, and improving the accuracy of the encoder installation.

[0067] In some technical solutions, optionally, the main body is provided with a mounting hole, and the mounting assembly is rotatably disposed in the mounting hole; the mounting mechanism also includes a bearing assembly, which is disposed in the mounting hole and located between the main body and the mounting assembly.

[0068] In this technical solution, it is defined that the mounting mechanism also includes a bearing assembly. Specifically, the main body is also provided with a mounting hole, the mounting assembly is rotatably arranged in the mounting hole, and the bearing assembly is located between the main body and the mounting assembly, thereby ensuring that the mounting assembly can rotate relative to the main body, and then the mounting assembly can drive the rotor to rotate relative to the stator when in the first position.

[0069] Optionally, the bearing assembly includes a first bearing and a second bearing. Specifically, the first bearing and the second bearing are distributed along the axial direction.

[0070] According to a second aspect of the present invention, there is provided an encoder which is assembled using a mounting mechanism as provided by any of the above technical solutions, and thus has all the beneficial technical effects of the mounting mechanism, which will not be described in detail herein.

[0071] In addition, the encoder provided according to the above technical solution of the present invention also has the following additional technical features:

[0072] In some technical schemes, optionally, the encoder includes a stator and a rotor, wherein the stator is used to be detachably connected to the main body, the stator has an installation cavity, and the rotor is arranged in the installation cavity; when the movable part is in a first position, the part of the matching part exposed to the main body is against the rotor, and the matching part can drive the rotor to rotate; when the movable part is in a second position, there is a gap between the part of the matching part exposed to the main body and the rotor.

[0073] In this technical solution, it is defined that the encoder includes a stator and a rotor. Specifically, when assembling the encoder, the bracket is first connected and fixed to the main body, and then, after placing the rotor, the circuit board is placed on the bracket. At this time, the circuit board is not fixed first, and the movable part is moved to the first position, that is, a part of the movable part extends into the matching cavity, so that the second ends of the multiple blades move outward, and the multiple blades are against the rotor, that is, the multiple blades are tightly supported in the matching hole of the rotor, so that the matching part can drive the rotor to rotate relative to the stator, so as to perform an alignment check between the photocell track and the code disc track, and detect whether there is any deviation during the rotation of the rotor.

[0074] After the code disc track and the photocell track are aligned, the circuit board is fixed on the bracket. Next, the rotor and the stator are connected, that is, the bracket and the code disc support are fixedly connected. After completion, the bracket is disconnected from the main body, and the movable part is moved from the first position to the second position, that is, a part of the movable part is moved out of the matching cavity, so that the second ends of the multiple blades move inward, and there is a gap between the multiple blades and the inner wall of the matching hole, so that the encoder can be removed from the mounting mechanism, thereby realizing the overall assembly of the split encoder.

[0075] In some technical schemes, optionally, the stator includes a bracket, a circuit board and a photocell, wherein the bracket is used to be detachably connected to the main body, the circuit board is arranged on the bracket and enclosed with the bracket to form an installation cavity, the photocell is arranged on the circuit board and located in the installation cavity, and the photocell is provided with a photocell track; the rotor includes a code disc and a code disc support, wherein the code disc is provided with a code disc track, the code disc support is arranged on the side of the code disc away from the circuit board, and the code disc support is provided with a matching hole; when the movable part is in the first position, the part of the matching part exposed to the main body is located in the matching hole and abuts against the inner wall of the matching hole, and the matching part can drive the rotor to rotate so that the code disc track and the photocell track are opposite to each other along the axial direction of the rotor; when the movable part is in the second position, there is a gap between the part of the matching part exposed to the main body and the inner wall of the matching hole.

[0076] In this technical solution, when assembling the encoder, the bracket is first connected and fixed to the main body, and then, after placing the rotor, the circuit board is placed on the bracket. At this time, the circuit board is not fixed first, and the movable part is moved to the first position, that is, a part of the movable part extends into the matching cavity, so that the second ends of the multiple blades move outward, and the multiple blades are against the rotor, that is, the multiple blades are tightened in the matching hole of the rotor, so that the matching part can drive the rotor to rotate relative to the stator, so as to perform an alignment check between the photocell track and the code disc track, and detect whether there is any deviation during the rotation of the rotor.

[0077] After the code disc track and the photocell track are aligned, the circuit board is fixed on the bracket. Next, the rotor and the stator are connected, that is, the bracket and the code disc support are fixedly connected. After completion, the bracket is disconnected from the main body, and the movable part is moved from the first position to the second position, that is, a part of the movable part is moved out of the matching cavity, so that the second ends of the multiple blades move inward, and there is a gap between the multiple blades and the inner wall of the matching hole, so that the encoder can be removed from the mounting mechanism, thereby realizing the overall assembly of the split encoder.

[0078] According to a third aspect of the present invention, a servo motor is provided, comprising an encoder as provided by any of the above technical solutions, thereby having all the beneficial technical effects of the encoder, which will not be repeated here.

[0079] Additional aspects and advantages according to the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0081] Figure 1 It shows one of the structural schematic diagrams of assembling an encoder with a mounting mechanism according to one embodiment of the present invention;

[0082] Figure 2 A second structural schematic diagram of an encoder assembled by a mounting mechanism according to an embodiment of the present invention is shown;

[0083] Figure 3 A third structural schematic diagram of an encoder assembled by a mounting mechanism according to an embodiment of the present invention is shown;

[0084] Figure 4 A fourth structural schematic diagram of an encoder assembled by a mounting mechanism according to an embodiment of the present invention is shown;

[0085] Figure 5 A fifth structural schematic diagram of an encoder assembled by a mounting mechanism according to an embodiment of the present invention is shown;

[0086] Figure 6 It shows one of the structural schematic diagrams of the installation mechanism according to one embodiment of the present invention;

[0087] Figure 7 A second structural schematic diagram of a mounting mechanism according to an embodiment of the present invention is shown;

[0088] Figure 8 A third structural schematic diagram of a mounting mechanism according to an embodiment of the present invention is shown;

[0089] Fig. 9 A fourth structural schematic diagram of a mounting mechanism according to an embodiment of the present invention is shown;

[0090] Fig.10 A fifth structural schematic diagram of a mounting mechanism according to an embodiment of the present invention is shown;

[0091] Fig.11 A sixth structural schematic diagram of a mounting mechanism according to an embodiment of the present invention is shown;

[0092] Fig.12 A seventh structural schematic diagram of a mounting mechanism according to an embodiment of the present invention is shown;

[0093] Fig.13 It shows one of the structural schematic diagrams of the main body according to one embodiment of the present invention;

[0094] Fig.14 A second structural schematic diagram of a main body according to an embodiment of the present invention is shown;

[0095] Fig.15 It shows one of the structural schematic diagrams of the rotating shaft according to one embodiment of the present invention;

[0096] Fig.16 A second structural schematic diagram of a rotating shaft according to an embodiment of the present invention is shown;

[0097] Fig.17 A third structural schematic diagram of a rotating shaft according to an embodiment of the present invention is shown;

[0098] Fig.18 It shows one of the structural schematic diagrams of the handle base according to one embodiment of the present invention;

[0099] Fig.19 A second structural schematic diagram of a handle base according to an embodiment of the present invention is shown;

[0100] Fig. 20 A third structural schematic diagram of a handle base according to an embodiment of the present invention is shown;

[0101] Fig.21 A schematic diagram of the structure of a movable part according to an embodiment of the present invention is shown;

[0102] Fig. 22 It shows one of the structural schematic diagrams of a handle according to one embodiment of the present invention;

[0103] Fig.23 A second structural schematic diagram of a handle according to an embodiment of the present invention is shown;

[0104] Fig.24 A third structural schematic diagram of a handle according to an embodiment of the present invention is shown;

[0105] Fig.25 One of the structural schematic diagrams of an encoder according to an embodiment of the present invention is shown;

[0106] Fig.26 A second schematic diagram of the structure of an encoder according to an embodiment of the present invention is shown;

[0107] Fig. 27 A schematic structural diagram of a stator according to an embodiment of the present invention is shown;

[0108] Fig.28 One of the structural schematic diagrams of a rotor according to an embodiment of the present invention is shown;

[0109] Fig.29 A second schematic structural diagram of a rotor according to an embodiment of the present invention is shown;

[0110] Fig.30 A third schematic structural diagram of a rotor according to an embodiment of the present invention is shown;

[0111] Fig.31 A schematic diagram showing the alignment of a code disc track and a photocell track according to an embodiment of the present invention is shown;

[0112] Fig.32 A schematic diagram showing alignment accuracy detection using an optical magnifying glass according to an embodiment of the present invention is shown;

[0113] Fig.33 A schematic structural diagram of an optical magnifier according to an embodiment of the present invention is shown.

[0114] in, Figures 1 to 33 The corresponding relationship between the reference numerals and the component names is as follows:

[0115] 100 mounting mechanism, 110 main body, 111 notch, 112 convex rib, 113 mounting hole, 120 mounting assembly, 121 matching piece, 122 movable piece, 123 matching cavity, 124 guide hole, 130 elastic piece, 140 main body, 141 cavity, 142 rotating shaft, 143 handle seat, 150 blade, 160 handle, 170 movable part, 180 bearing assembly, 300 encoder, 310 stator, 311 bracket, 312 circuit board, 313 photocell, 314 photocell track, 315 mounting cavity, 320 rotor, 321 code disk, 322 code disk support, 323 code disk track, 324 matching hole, 400 optical magnifier, 410 platform. DETAILED DESCRIPTION

[0116] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0117] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0118] Refer to the following Figures 1 to 33 The mounting mechanism 100, the encoder 300 and the servo motor provided according to some embodiments of the present invention are described.

[0119] In one embodiment according to the present application, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.25 , Fig.26 , Fig. 27 , Fig.28 , Fig.29 and Fig.30As shown, a mounting mechanism 100 is proposed, and the mounting mechanism 100 is used to assemble an encoder 300, and the encoder 300 includes a stator 310 and a rotor 320. The mounting mechanism 100 includes: a main body 110, and the main body 110 is used to detachably connect the stator 310; a mounting assembly 120, which is rotatably arranged on the main body 110, and the mounting assembly 120 includes a matching piece 121 and a movable piece 122, and the movable piece 122 is arranged on the matching piece 121, and can move between a first position and a second position relative to the matching piece 121, and a part of the matching piece 121 is exposed from the main body 110; wherein, when the movable piece 122 is located at the first position, the part of the matching piece 121 exposed from the main body 110 is against the rotor 320, and the matching piece 121 can drive the rotor 320 to rotate; when the movable piece 122 is located at the second position, there is a gap between the part of the matching piece 121 exposed from the main body 110 and the rotor 320.

[0120] The mounting mechanism 100 provided in the embodiment of the present invention includes a main body 110 and a mounting assembly 120. Specifically, the mounting mechanism 100 is used to assemble the encoder 300. It can be understood that the encoder 300 includes a stator 310 and a rotor 320. That is, the assembly and alignment of the stator 310 and the rotor 320 are achieved through the mounting mechanism 100.

[0121] The mounting assembly 120 is disposed on the main body 110, and the mounting assembly 120 can rotate relative to the main body 110. The mounting assembly 120 includes a fitting 121 and a movable member 122. Specifically, the movable member 122 is disposed on the fitting 121, and the movable member 122 can move between a first position and a second position relative to the fitting 121, so that the portion of the fitting 121 exposed from the main body 110 abuts against or has a gap with the rotor 320, thereby achieving assembly and alignment between the stator 310 of the encoder 300 and the rotor 320 of the encoder 300, ensuring alignment accuracy, and effectively reducing the number of disassembly and assembly during the assembly process of the stator 310 and the rotor 320 of the encoder 300, thereby improving installation efficiency.

[0122] like Fig.31 As shown, it can be understood that the stator 310 includes a bracket 311, a circuit board 312 and a photocell 313, and the photocell 313 is arranged on the side of the circuit board 312 facing the bracket 311. A photocell track 314 is arranged on the photocell 313. The rotor 320 includes a code disc 321 and a code disc support 322, and a code disc track 323 is arranged on the code disc 321. In the process of fixing the stator 310 and the rotor 320, the photocell track 314 and the code disc track 323 need to be aligned. In other words, the installation mechanism 100 can achieve the alignment of the photocell track 314 and the code disc track 323 while achieving the connection between the stator 310 and the rotor 320.

[0123] Specifically, when assembling the encoder 300, the bracket 311 is first connected and fixed to the main body 110, wherein the bracket 311 and the main body 110 can be detachably connected by a plurality of screws. Then, after placing the rotor 320, the circuit board 312 is placed on the bracket 311. At this time, the circuit board 312 is not fixed first, and the movable part 122 is moved to the first position so that the matching part 121 and the rotor 320 are abutted against each other, and the matching part 121 drives the rotor 320 to rotate relative to the stator 310, so as to perform an alignment check between the photocell track 314 and the code disc track 323, and detect whether the rotor 320 is deviated during rotation.

[0124] After the code disc track 323 and the photocell track 314 are aligned neatly, the circuit board 312 is fixed on the bracket 311. Next, the rotor 320 and the stator 310 are connected, that is, the bracket 311 and the code disc support 322 are fixedly connected. After completion, the bracket 311 is disconnected from the main body 110, and the movable part 122 is moved to the second position, so that there is a gap between the matching part 121 and the rotor 320, that is, the matching part 121 and the rotor 320 are disengaged, and the encoder 300 is removed from the mounting mechanism 100, thereby realizing the overall assembly of the split encoder 300. While meeting the alignment requirements of the code disc 321 and the photocell 313, the number of disassembly and assembly is effectively reduced, the installation efficiency is improved, and the problem of the code disc 321 being contaminated and affecting the output signal during the assembly process of the rotor 320 and the stator 310 is prevented, thereby ensuring the performance of the split encoder 300.

[0125] In addition, the mounting mechanism 100 can also be used to perform the alignment installation of the code disc 321 and the code disc support 322. Specifically, after the bracket 311 is connected to the main body 110, the code disc support 322 is placed on the part of the matching piece 121 exposed to the main body 110, the movable piece 122 is moved to the first position, and the matching piece 121 is abutted against the code disc support 322 to fix the code disc support 322. Under the optical magnifying glass 400, and with the help of external tooling, the code disc 321 and the code disc support 322 are aligned and installed. In this process, the matching piece 121 can drive the code disc support 322 to rotate, and the accuracy is checked while alignment to ensure that the concentricity of the code disc support 322 and the code disc 321 is within 5μm, that is, the center of the code disc track 323 is adjusted to coincide with the rotation center of the code disc support 322 as much as possible.

[0126] After the code disc 321 and the code disc support 322 are aligned and installed, the circuit board 312 is placed on the bracket 311, and the code disc track 323 and the photocell track 314 are aligned. That is to say, in the entire assembly process of the encoder 300, only one disassembly and assembly can be performed, thereby ensuring the concentricity requirements of the code disc 321 and the alignment requirements of the code disc 321 and the photocell 313 during the production process of the encoder 300, while minimizing the number of disassembly and assembly times, reducing the disassembly and assembly hours, improving the assembly efficiency of the encoder 300, reducing the production cost of the encoder 300, and ensuring the alignment accuracy.

[0127] It can be understood that the split encoders in the related art generally include two types:

[0128] The first type is the encoder stator and encoder rotor, which are used as two parts when installing the servo motor. Specifically, the encoder rotor is installed first, the tooling is used to control the rotor axial height, the motor shaft diameter is used to control the radial deviation, and then the encoder stator is installed. The motor needs to process the stopper on the encoder stator installation surface to ensure the concentricity of the encoder stator and rotor as much as possible.

[0129] However, this assembly method completely relies on the stop and assembly of the motor shaft and encoder mounting surface, resulting in poor production consistency.

[0130] The second type is that the encoder stator and rotor are fixed together by some structures, such as screws, limit blocks, limit grooves, etc. during encoder production. The special alignment platform or tooling of the production line is used to achieve precise alignment. No secondary positioning is required when installing the motor, and the relative position accuracy of the encoder stator and rotor is not completely dependent on the motor shaft size processing accuracy and stop. This encoder is usually called an integral or integrated split encoder. It is understandable that the installation accuracy of this assembly method is significantly better than the first one.

[0131] That is to say, the present application connects the stator 310 and the rotor 320 and then installs the encoder 300 on the servo motor. Compared with the related art of installing the stator and the rotor on the servo motor separately, the installation accuracy of the encoder 300 can be improved to ensure production consistency.

[0132] Optionally, the rotor 320 further includes a matching hole 324, which is disposed on the code disc support 322. When the encoder 300 is assembled, the portion of the matching piece 121 exposed from the main body 110 is located in the matching hole 324 and is tightly or loosely supported by the inner wall of the matching hole 324. It is understandable that after the encoder 300 is assembled, when the encoder 300 is installed with the servo motor, the motor shaft of the servo motor is connected to the matching hole 324.

[0133] Optionally, after the photocell 313 and the code disc 321 are aligned, the bracket 311 and the circuit board 312 may be fixedly connected by screws or glue.

[0134] It is worth noting that the split photoelectric encoder 300 refers to a type of rotary servo motor feedback device, which is characterized in that the encoder 300 body 140 does not contain bearings, and the encoder 300 stator 310 and rotor 320 are divided into two parts and installed together on the servo motor, which is different from the integrated or integral encoder 300.

[0135] The code disk 321 refers to the moving grating of the photoelectric encoder 300, which is composed of transparent and opaque concentric fan-shaped patterns, and produces light and dark stripes when rotating under light.

[0136] like Figure 2 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments, optionally, the mounting mechanism 100 further includes an elastic member 130, two ends of which are respectively connected to the movable member 122 and the matching member 121, and the elastic member 130 can enable the movable member 122 to return to its original position after being moved.

[0137] In this embodiment, it is defined that the mounting mechanism 100 also includes an elastic member 130. Specifically, one end of the elastic member 130 is connected to the movable member 122, and the other end is connected to the mating member 121, and the elastic member 130 can move the movable member 122 and then reset it, thereby further improving the convenience of the encoder 300 during assembly, improving assembly efficiency, and reducing the production cost of the encoder 300.

[0138] Specifically, when the movable member 122 is moved from the first position to the second position, the elastic member 130 is elastically deformed, or when the movable member 122 is moved from the second position to the first position, the elastic member 130 is elastically deformed. The elastic member 130 can be compressed or stretched. It can be set according to actual needs.

[0139] Optionally, after the bracket 311 and the code disk support 322 are fixedly connected, the bracket 311 is disconnected from the main body 110, and the movable part 122 is moved to the second position so that there is a gap between the part of the matching part 121 exposed outside the main body 110 and the rotor 320. At this time, the elastic part 130 is compressed. After the assembled encoder 300 is removed from the main body 110, the movable part 122 automatically returns to the first position under the action of the elastic part 130, thereby realizing automatic resetting of the movable part 122 after movement.

[0140] It can be understood that when the bracket 311 is fixedly connected to the main body 110 and the rotor 320 is placed, the part of the fitting 121 exposed outside the main body 110 is inserted into the fitting hole 324 on the code disc support 322. At this time, the movable part 122 can be moved to the second position so that there is a gap between the fitting 121 and the inner wall of the fitting hole 324. Under the action of gravity, the rotor 320 makes the side of the code disc support 322 close to the main body 110 fit with the bearing surface of the main body 110 facing the rotor 320. At this time, the elastic part 130 is compressed.

[0141] Release the movable part 122, and under the action of the elastic part 130, the movable part 122 automatically moves to the first position, so that the part of the matching part 121 exposed from the main body 110 is against the inner wall of the matching hole 324, ensuring the effective cooperation between the matching part 121 and the rotor 320, and then the matching part 121 can drive the rotor 320 to rotate relative to the stator 310, so as to realize the alignment accuracy inspection of the code disk track 323 and the photocell track 314.

[0142] Optionally, the elastic member 130 includes a spring or a tension spring.

[0143] like Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.15 , Fig.16 and Fig.17 As shown, in some embodiments, optionally, the mating piece 121 includes a plurality of blades 150, the plurality of blades 150 are exposed from the main body 110, and enclose a mating cavity 123, and the movable piece 122 can move into or out of the mating cavity 123; wherein, when the movable piece 122 is located at the first position, the movable piece 122 moves into the mating cavity 123, and the plurality of blades 150 move in a direction away from the mating cavity 123, so that the plurality of blades 150 are away from a side of the mating cavity 123 and abut against the rotor 320; when the movable piece 122 is located at the second position, the movable piece 122 moves out of the mating cavity 123, and the plurality of blades 150 move in a direction close to the mating cavity 123, so that there is a gap between the plurality of blades 150 and the rotor 320.

[0144] In this embodiment, it is defined that the mating part 121 includes a plurality of blades 150. Specifically, the plurality of blades 150 are exposed from the main body 110, and the plurality of blades 150 enclose a mating cavity 123. That is to say, in the process of the movable part 122 moving into or out of the mating cavity 123, the plurality of blades 150 abut against the rotor 320 or there is a gap between the plurality of blades 150 and the rotor 320, even if the plurality of blades 150 and the mating holes 324 of the rotor 320 are tightened or loosened.

[0145] Specifically, when assembling the encoder 300, the bracket 311 is first connected and fixed to the main body 110, and then, after placing the rotor 320, the circuit board 312 is placed on the bracket 311. At this time, the circuit board 312 is not fixed first, and the movable part 122 is moved to the first position, that is, a part of the movable part 122 extends into the matching cavity 123, so that the multiple blades 150 move outward, so that the multiple blades 150 and the rotor 320 are abutted, that is, the multiple blades 150 are tightly supported in the matching hole 324 of the rotor 320, so that the matching part 121 can drive the rotor 320 to rotate relative to the stator 310, so as to perform an alignment check between the photocell track 314 and the code disc track 323, and detect whether the rotor 320 is deviated during rotation.

[0146] After the code disc track 323 and the photocell track 314 are aligned neatly, the circuit board 312 is fixed on the bracket 311. Next, the rotor 320 and the stator 310 are connected, that is, the bracket 311 and the code disc support 322 are fixedly connected. After completion, the bracket 311 is disconnected from the main body 110, and the movable part 122 is moved from the first position to the second position, that is, a part of the movable part 122 is moved out of the matching cavity 123, and the multiple blades 150 move inwardly. There is a gap between the multiple blades 150 and the rotor 320, that is, there is a gap between the multiple blades 150 and the inner wall of the matching hole 324, so that the encoder 300 can be removed from the mounting mechanism 100, thereby realizing the overall assembly of the split encoder.

[0147] In some embodiments, optionally, a wall surface of at least one blade 150 that faces away from the center of the body 140 is configured as an arc-shaped wall.

[0148] In this embodiment, the wall surface that limits at least one blade 150 away from the center of the main body 140 is constructed as an arc-shaped wall. It can be understood that the rotor 320 includes a mating hole 324 arranged on the code disc support 322. When the encoder 300 is assembled and installed on the servo motor, the motor shaft of the servo motor is connected to the mating hole 324, that is, the inner wall of the mating hole 324 is an arc-shaped surface.

[0149] By setting the wall surface of at least one blade 150 away from the center of the main body 140 as an arc-shaped wall, the matching strength between at least one blade 150 and the inner wall of the matching hole 324 can be improved when the movable part 122 is in the first position, so that at least one blade 150 is firmly supported in the matching hole 324, thereby ensuring that the matching part 121 can drive the rotor 320 to rotate relative to the stator 310, so as to perform the alignment check of the photocell track 314 and the code disk track 323, and detect whether the rotor 320 is deviated during rotation.

[0150] Optionally, the wall surface of each blade 150 away from the center of the body 140 is configured as an arc-shaped wall.

[0151] like Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.15 , Fig.16 and Fig.17 As shown, in some embodiments, optionally, the mating piece 121 also includes a main body 140, the main body 140 is provided with a cavity 141, the cavity 141 is connected to the mating cavity 123, the movable piece 122 is movably disposed in the cavity 141, the first ends of the plurality of blades 150 are disposed on the main body 140, and the second ends of the plurality of blades 150 are capable of moving relative to the main body 140.

[0152] In this embodiment, it is defined that the fitting 121 further includes a body 140 . Specifically, the body 140 is provided with a cavity 141 , and the cavity 141 is communicated with the fitting cavity 123 .

[0153] The movable member 122 can be movably disposed in the cavity 141 , thereby providing installation and movement space for the movable member 122 , which is beneficial to reducing the occupied space of the installation mechanism 100 .

[0154] One end of the multiple blades 150 is set on the main body 140, and the other end can move outward or inward when a part of the movable part 122 extends into or moves out of the matching cavity 123, so as to control the multiple blades 150 and the rotor 320 to be tightened or loosened according to actual needs in the assembly process, thereby effectively reducing the number of disassembly and assembly times and improving installation efficiency while meeting the alignment requirements of the code disk 321 and the photocell 313.

[0155] Specifically, when assembling the encoder 300, the bracket 311 is first connected and fixed to the main body 110, and then, after placing the rotor 320, the circuit board 312 is placed on the bracket 311. At this time, the circuit board 312 is not fixed first, and the movable part 122 is moved to the first position, that is, a part of the movable part 122 extends into the matching cavity 123, so that the second ends of the multiple blades 150 move outward, and the multiple blades 150 are against the rotor 320, that is, the multiple blades 150 are tightly supported in the matching hole 324 of the rotor 320, so that the matching part 121 can drive the rotor 320 to rotate relative to the stator 310, so as to perform an alignment check between the photocell track 314 and the code disc track 323, and detect whether the rotor 320 is deviated during rotation.

[0156] After the code disc track 323 and the photocell track 314 are aligned neatly, the circuit board 312 is fixed on the bracket 311. Next, the rotor 320 and the stator 310 are connected, that is, the bracket 311 and the code disc support 322 are fixedly connected. After completion, the bracket 311 is disconnected from the main body 110, and the movable member 122 is moved from the first position to the second position, that is, a part of the movable member 122 is moved out of the matching cavity 123, so that the second ends of the multiple blades 150 move inwardly, and there is a gap between the multiple blades 150 and the inner wall of the matching hole 324, so that the encoder 300 can be removed from the mounting mechanism 100, thereby realizing the overall assembly of the split encoder 300.

[0157] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.21 , Fig. 22 , Fig.23 and Fig.24 As shown, in some embodiments, optionally, the movable member 122 includes a handle 160 and a movable portion 170, wherein at least a portion of the handle 160 is exposed from the cavity 141, and the movable portion 170 is connected to one end of the handle 160 facing the mating cavity 123 and is located in the cavity 141, and the movable portion 170 can move into or out of the mating cavity 123.

[0158] In this embodiment, the movable member 122 is defined to include a handle 160 and a movable portion 170. Specifically, at least a portion of the handle 160 is exposed outside the cavity 141, so that by pulling the handle 160, the movable portion 170 can be moved into or out of the matching cavity 123, so that the plurality of blades 150 are in contact with or have a gap with the rotor 320.

[0159] Moreover, by rotating the handle 160 or the body 140, the rotor 320 can be driven to rotate relative to the stator 310 to check the alignment of the photocell track 314 and the code disc track 323. While meeting the alignment requirements of the code disc 321 and the photocell 313, the number of disassembly and assembly is effectively reduced, the installation efficiency is improved, and the problem of the code disc 321 being contaminated and affecting the output signal during the assembly process of the rotor 320 and the stator 310 is prevented, thereby ensuring the performance of the split encoder 300.

[0160] Specifically, when assembling the encoder 300, the bracket 311 is first connected and fixed to the main body 110, and then, after placing the rotor 320, the circuit board 312 is placed on the bracket 311. At this time, the circuit board 312 is not fixed first, and the movable part 122 is moved to the first position, that is, the handle 160 drives the movable part 170 to extend into the matching cavity 123, so that the second ends of the multiple blades 150 move outward to increase the cross-sectional area of ​​the matching cavity 123, and the matching part 121 is matched with the rotor 320, even if a part of the matching part 121 is tightened in the matching hole 324 of the rotor 320, so that the matching part 121 can drive the rotor 320 to rotate relative to the stator 310, so as to perform an alignment check between the photocell track 314 and the code disc track 323, and detect whether the rotor 320 is deviated during rotation.

[0161] After the code disc track 323 and the photocell track 314 are aligned neatly, the circuit board 312 is fixed on the bracket 311. Next, the rotor 320 and the stator 310 are connected, that is, the bracket 311 and the code disc support 322 are fixedly connected. After completion, the bracket 311 is disconnected from the main body 110. At this time, the handle 160 is pulled so that the handle 160 drives the movable part 170 to move out of the matching cavity 123, so that the second ends of the multiple blades 150 move inward to reduce the cross-sectional area of ​​the matching cavity 123, and the matching piece 121 is disengaged from the rotor 320. In other words, there is a gap between the part of the matching piece 121 located in the matching hole 324 and the inner wall of the matching hole 324, so that the encoder 300 can be removed from the mounting mechanism 100, thereby realizing the overall assembly of the split encoder 300.

[0162] Optionally, the outer wall of the movable part 170 is provided with an external thread, and the end of the handle 160 facing the movable part 170 is provided with a first connecting hole, and the first connecting hole is provided with an internal thread, that is, the movable part 170 and the handle 160 are fixedly connected by threaded cooperation.

[0163] Optionally, a stop shoulder is further provided on the outer wall of the movable portion 170 , and one end of the elastic member 130 is connected to the stop shoulder, and the other end is connected to the matching member 121 .

[0164] like Fig.19As shown, in some embodiments, optionally, the fitting 121 further includes a guide hole 124 , which is disposed in the body 140 and communicates with the cavity 141 , and the handle 160 can move in the guide hole 124 .

[0165] In this embodiment, it is defined that the mating piece 121 also includes a guide hole 124. Specifically, the guide hole 124 is provided on the main body 140, and the guide hole 124 is connected to the cavity 141. The handle 160 can move in the guide hole 124, that is, the moving path of the handle 160 is defined, ensuring that during the movement of the handle 160 relative to the main body 140, the movable part 170 can be driven to move into or out of the mating cavity 123, thereby ensuring that the plurality of blades 150 can be against or have a gap with the rotor 320, thereby realizing rapid assembly and alignment inspection of the split encoder 300, and improving the installation accuracy and efficiency of the split encoder 300.

[0166] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.15 , Fig.16 , Fig.17 , Fig.18 , Fig.19 and Fig. 20 As shown, in some embodiments, optionally, the main body 140 includes a rotating shaft 142 and a handle seat 143, wherein the first ends of the plurality of blades 150 are disposed on the rotating shaft 142, the rotating shaft 142 is provided with a cavity 141, a portion of the handle seat 143 is disposed in the cavity 141 and connected to the rotating shaft 142, and the handle 160 is movably disposed on the handle seat 143.

[0167] In this embodiment, the main body 140 is defined to include a rotating shaft 142 and a handle seat 143 . Specifically, the first ends of the plurality of blades 150 are disposed on the rotating shaft 142 , a portion of the handle seat 143 is disposed in the cavity 141 , and the handle seat 143 is connected to the rotating shaft 142 .

[0168] The handle 160 is disposed on the handle seat 143 and can move relative to the handle seat 143 to drive the movable portion 170 to move into or out of the matching cavity 123 , thereby allowing the plurality of blades 150 to abut against or have a gap with the rotor 320 .

[0169] Specifically, when assembling the encoder 300, the bracket 311 is first connected and fixed to the main body 110, and then, after placing the rotor 320, the circuit board 312 is placed on the bracket 311. At this time, the circuit board 312 is not fixed first, and the movable part 122 is moved to the first position, that is, the handle 160 drives the movable part 170 to extend into the matching cavity 123, so that the second ends of the multiple blades 150 move outward to increase the cross-sectional area of ​​the matching cavity 123, and the matching part 121 is matched with the rotor 320, even if a part of the matching part 121 is tightened in the matching hole 324 of the rotor 320, so that the matching part 121 can drive the rotor 320 to rotate relative to the stator 310, so as to perform an alignment check between the photocell track 314 and the code disc track 323, and detect whether the rotor 320 is deviated during rotation.

[0170] After the code disc track 323 and the photocell track 314 are aligned neatly, the circuit board 312 is fixed on the bracket 311. Next, the rotor 320 and the stator 310 are connected, that is, the bracket 311 and the code disc support 322 are fixedly connected. After completion, the bracket 311 is disconnected from the main body 110. At this time, the handle 160 is pulled so that the handle 160 drives the movable part 170 to move out of the matching cavity 123, so that the second ends of the multiple blades 150 move inward to reduce the cross-sectional area of ​​the matching cavity 123, and the matching piece 121 is disengaged from the rotor 320. In other words, there is a gap between the part of the matching piece 121 located in the matching hole 324 and the inner wall of the matching hole 324, so that the encoder 300 can be removed from the mounting mechanism 100, thereby realizing the overall assembly of the split encoder 300.

[0171] Optionally, the inner wall of the rotating shaft 142 located in the cavity 141 is provided with an internal thread, and the outer wall of the handle seat 143 is provided with an external thread, that is, the rotating shaft 142 and the handle seat 143 are fixedly connected by threaded cooperation.

[0172] Optionally, the outer wall of the rotating shaft 142 is provided with a limiting plane, and the limiting plane of the rotating shaft 142 can be clamped by an external tooling, and then the rotating shaft 142 is connected to the handle seat 143, so as to further improve the installation efficiency.

[0173] It can be understood that the guide hole 124 is provided on the handle seat 143 , that is, the handle 160 extends out of the cavity 141 through the guide hole 124 .

[0174] like Figure 5 , Figure 7 , Fig. 9 , Fig.11 , Fig.12 , Fig.13 and Fig.14As shown, in some embodiments, optionally, the main body 110 is further provided with a notch 111 , and along the axial direction of the mounting assembly 120 , the notch 111 is used to be opposite to the code disc 321 of the rotor 320 .

[0175] In this embodiment, it is defined that the main body 110 is also provided with a notch 111. Specifically, the notch 111 penetrates the main body 110 axially, and the notch 111 is opposite to the code disk 321. It can be understood that when the encoder 300 is assembled, the stator 310 and the rotor 320 are both located above the main body 110, and along the axial direction of the mounting assembly 120, the circuit board 312 is located above the rotor 320, that is, the photocell 313 is opposite to the code disk 321, and the photocell 313 is located on the side of the code disk 321 away from the notch 111.

[0176] By providing a notch 111 on the main body 110, when the mounting mechanism 100 and the encoder 300 are placed on the platform 410 of the optical magnifier 400, the optical magnifier 400 can be used to observe the alignment of the code disc track 323 on the code disc 321 and the photocell track 314 on the photocell 313 through the notch 111 while the matching part 121 drives the rotor 320 to rotate relative to the stator 310, thereby realizing the function of aligning and detecting accuracy at the same time.

[0177] It is understandable that the photocell 313 refers to a photoelectric conversion component that converts an optical signal into an electrical signal.

[0178] like Fig.31 , Fig.32 and Fig.33 As shown, the optical magnifier 400 refers to a device with a magnifying function, and the present application is used to observe the photocell track 314 and the code disc track 323 after magnification. Specifically, within the observation field of the optical magnifier 400, the photocell track 314 and the code disc track 323 are aligned to achieve precise alignment. At the same time, the rotor 320 can be driven to rotate relative to the stator 310 through the matching piece 121 to detect whether there is a deviation of the track within 360° in a circle, so as to determine whether the alignment meets the requirements.

[0179] like Figure 2 , Figure 4 , Figure 7 , Fig. 9 , Fig.11 and Fig.14 As shown, in some embodiments, optionally, a rib 112 is provided on the end surface of the main body 110 , and at least a portion of the rib 112 extends along the circumferential direction of the mounting assembly 120 for matching with the stator 310 .

[0180] In this embodiment, a rib 112 is provided on the end face of the main body 110. Specifically, at least a portion of the rib 112 extends along the circumferential direction of the mounting assembly 120, and the rib 112 is used to cooperate with the stator 310, so as to limit the stator 310 relative to the stator 310 in the radial direction, thereby ensuring the concentricity of the stator 310 and the rotor 320 and improving the installation accuracy of the encoder 300.

[0181] like Figure 7 , Fig.13 and Fig.14 As shown, in some embodiments, optionally, the main body 110 is provided with a mounting hole 113, and the mounting assembly 120 is rotatably disposed in the mounting hole 113; the mounting mechanism 100 also includes a bearing assembly 180, which is disposed in the mounting hole 113 and is located between the main body 110 and the mounting assembly 120.

[0182] In this embodiment, it is defined that the mounting mechanism 100 also includes a bearing assembly 180. Specifically, the main body 110 is also provided with a mounting hole 113, the mounting assembly 120 is rotatably disposed in the mounting hole 113, and the bearing assembly 180 is located between the main body 110 and the mounting assembly 120, thereby ensuring that the mounting assembly 120 can rotate relative to the main body 110, and further enabling the mounting assembly 120 to drive the rotor 320 to rotate relative to the stator 310 when in the first position.

[0183] Optionally, the bearing assembly 180 includes a first bearing and a second bearing. Specifically, the first bearing and the second bearing are distributed along the axial direction.

[0184] According to a second aspect of the present invention, an encoder 300 is provided, which is assembled using the mounting mechanism 100 provided in any of the above embodiments, and thus has all the beneficial technical effects of the mounting mechanism 100, which will not be described in detail herein.

[0185] It can be understood that the split encoders in the related art generally include two types:

[0186] The first type is the encoder stator and encoder rotor, which are used as two parts when installing the servo motor. Specifically, the encoder rotor is installed first, the tooling is used to control the rotor axial height, the motor shaft diameter is used to control the radial deviation, and then the encoder stator is installed. The motor needs to process the stopper on the encoder stator installation surface to ensure the concentricity of the encoder stator and rotor as much as possible.

[0187] However, this assembly method completely relies on the stop and assembly of the motor shaft and encoder mounting surface, resulting in poor production consistency.

[0188] The second type is that the encoder stator and rotor are fixed together by some structures, such as screws, limit blocks, limit grooves, etc. during encoder production. The special alignment platform or tooling of the production line is used to achieve precise alignment. No secondary positioning is required when installing the motor, and the relative position accuracy of the encoder stator and rotor is not completely dependent on the motor shaft size processing accuracy and stop. This encoder is usually called an integral or integrated split encoder. It is understandable that the installation accuracy of this assembly method is significantly better than the first one.

[0189] That is to say, the present application connects the stator 310 and the rotor 320 and then installs the encoder 300 on the servo motor. Compared with the related art of installing the stator and the rotor on the servo motor separately, the installation accuracy of the encoder 300 can be improved to ensure production consistency.

[0190] like Figure 2 , Figure 3 , Figure 4 , Fig.25 , Fig.26 , Fig. 27 , Fig.28 , Fig.29 , Fig.30 , Fig.31 , Fig.32 and Fig.33 As shown, in some embodiments, optionally, the encoder 300 includes a stator 310 and a rotor 320, wherein the stator 310 is used to be detachably connected to the main body 110, the stator 310 has an installation cavity 315, and the rotor 320 is arranged in the installation cavity 315; when the movable part 122 is in the first position, the part of the matching part 121 exposed from the main body 110 is against the rotor 320, and the matching part 121 can drive the rotor 320 to rotate; when the movable part 122 is in the second position, there is a gap between the part of the matching part 121 exposed from the main body 110 and the rotor 320.

[0191] In this embodiment, the encoder 300 is defined to include a stator 310 and a rotor 320. Specifically, when assembling the encoder 300, the bracket 311 is first connected and fixed to the main body 110. Then, after placing the rotor 320, the circuit board 312 is placed on the bracket 311. At this time, the circuit board 312 is not fixed first, and the movable part 122 is moved to the first position, that is, the handle 160 drives the movable part 170 to extend into the matching cavity 123, so that the second ends of the plurality of blades 150 move outward to increase the cross-sectional area of ​​the matching cavity 123. The matching part 121 is matched with the rotor 320, even if a part of the matching part 121 is tightened in the matching hole 324 of the rotor 320, so that the matching part 121 can drive the rotor 320 to rotate relative to the stator 310, so as to perform an alignment check between the photocell track 314 and the code disc track 323, and detect whether the rotor 320 deviates during rotation.

[0192] After the code disc track 323 and the photocell track 314 are aligned neatly, the circuit board 312 is fixed on the bracket 311. Next, the rotor 320 and the stator 310 are connected, that is, the bracket 311 and the code disc support 322 are fixedly connected. After completion, the bracket 311 is disconnected from the main body 110. At this time, the handle 160 is pulled so that the handle 160 drives the movable part 170 to move out of the matching cavity 123, so that the second ends of the multiple blades 150 move inward to reduce the cross-sectional area of ​​the matching cavity 123, and the matching piece 121 is disengaged from the rotor 320. In other words, there is a gap between the part of the matching piece 121 located in the matching hole 324 and the inner wall of the matching hole 324, so that the encoder 300 can be removed from the mounting mechanism 100, thereby realizing the overall assembly of the split encoder 300.

[0193] like Figure 2 , Figure 3 , Figure 4 , Fig.25 , Fig.26 , Fig. 27 , Fig.28 , Fig.29 , Fig.30 , Fig.31 , Fig.32 and Fig.33As shown, in some embodiments, optionally, the stator 310 includes a bracket 311, a circuit board 312 and a photocell 313, wherein the bracket 311 is used to be detachably connected to the main body 110, the circuit board 312 is arranged on the bracket 311, and is enclosed with the bracket 311 to form an installation cavity 315, the photocell 313 is arranged on the circuit board 312, and is located in the installation cavity 315, and the photocell 313 is provided with a photocell track 314; the rotor 320 includes a code disc 321 and a code disc support 322, wherein the code disc 321 is provided with a code disc track 323, and the code disc support 322 is provided on the code disc 3 21 is on the side of the code disk support 322 away from the circuit board 312, and a matching hole 324 is provided; when the movable part 122 is located in the first position, the part of the matching part 121 exposed from the main body 110 is located in the matching hole 324 and abuts against the inner wall of the matching hole 324, and the matching part 121 can drive the rotor 320 to rotate so that the code disk track 323 and the photocell track 314 are opposite to each other along the axial direction of the rotor 320; when the movable part 122 is located in the second position, there is a gap between the part of the matching part 121 exposed from the main body 110 and the inner wall of the matching hole 324.

[0194] In this embodiment, when assembling the encoder 300, the bracket 311 is first connected and fixed to the main body 110, and then, after placing the rotor 320, the circuit board 312 is placed on the bracket 311. At this time, the circuit board 312 is not fixed first, and the movable part 122 is moved to the first position, that is, the handle 160 drives the movable part 170 to extend into the matching cavity 123, so that the second ends of the plurality of blades 150 move outward to increase the cross-sectional area of ​​the matching cavity 123, and the matching part 121 is matched with the rotor 320, even if a part of the matching part 121 is tightened in the matching hole 324 of the rotor 320, so that the matching part 121 can drive the rotor 320 to rotate relative to the stator 310, so as to perform an alignment check between the photocell track 314 and the code disc track 323, and detect whether the rotor 320 is deviated during rotation.

[0195] After the code disc track 323 and the photocell track 314 are aligned neatly, the circuit board 312 is fixed on the bracket 311. Next, the rotor 320 and the stator 310 are connected, that is, the bracket 311 and the code disc support 322 are fixedly connected. After completion, the bracket 311 is disconnected from the main body 110. At this time, the handle 160 is pulled so that the handle 160 drives the movable part 170 to move out of the matching cavity 123, so that the second ends of the multiple blades 150 move inward to reduce the cross-sectional area of ​​the matching cavity 123, and the matching piece 121 is disengaged from the rotor 320. In other words, there is a gap between the part of the matching piece 121 located in the matching hole 324 and the inner wall of the matching hole 324, so that the encoder 300 can be removed from the mounting mechanism 100, thereby realizing the overall assembly of the split encoder 300.

[0196] According to a third aspect of the present invention, a servo motor is provided, comprising an encoder 300 as provided in any of the above embodiments, and thus having all the beneficial technical effects of the encoder 300, which will not be described in detail herein.

[0197] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0198] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0199] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mounting mechanism, characterized in that: The mounting mechanism is used to assemble an encoder, the encoder includes a stator and a rotor, and the mounting mechanism includes: A main body, the main body is used to be detachably connected to the stator; A mounting assembly is rotatably disposed on the main body, the mounting assembly comprises a matching piece and a movable piece, the movable piece is disposed on the matching piece and can move between a first position and a second position relative to the matching piece, and a portion of the matching piece is exposed outside the main body; Wherein, when the movable member is located at the first position, the portion of the matching member exposed from the main body abuts against the rotor, and the matching member can drive the rotor to rotate; When the movable member is located at the second position, a gap exists between the portion of the fitting member exposed outside the main body and the rotor.

2. The mounting mechanism according to claim 1, characterized in that: The mounting mechanism further comprises: An elastic member, two ends of which are respectively connected to the movable member and the matching member, and the elastic member can make the movable member return to its original position after being moved.

3. The mounting mechanism according to claim 1, characterized in that: The matching piece comprises: A plurality of blades, wherein the plurality of blades are exposed from the main body and enclose a matching cavity, and the movable member can be moved into or out of the matching cavity; Wherein, when the movable member is located at the first position, the movable member moves into the matching cavity, and the plurality of blades move in a direction away from the matching cavity, so that a side of the plurality of blades away from the matching cavity abuts against the rotor; When the movable member is located at the second position, the movable member moves out of the matching cavity, and the plurality of blades move toward the matching cavity, so that a gap exists between a side of the plurality of blades away from the matching cavity and the rotor.

4. The mounting mechanism according to claim 3, characterized in that: A side surface of at least one of the blades facing away from the matching cavity is configured as an arc-shaped surface.

5. The mounting mechanism according to claim 3, characterized in that: The matching piece also includes: The main body is provided with a cavity, the cavity is communicated with the matching cavity, the movable part is movably arranged in the cavity, the first ends of the plurality of blades are arranged on the main body, and the second ends of the plurality of blades can move relative to the main body.

6. The mounting mechanism according to claim 5, characterized in that: The movable parts include: a handle, at least a portion of which is exposed outside the cavity; The movable part is connected to one end of the handle facing the matching cavity and is located in the cavity. The movable part can be moved into or out of the matching cavity.

7. The mounting mechanism according to claim 6, characterized in that: The matching piece also includes: A guide hole is provided in the main body and communicated with the cavity, and the handle can move in the guide hole.

8. The mounting mechanism according to claim 6, characterized in that: The body comprises: A rotating shaft, on which the first ends of the plurality of blades are arranged, and the rotating shaft is provided with the cavity; A handle seat, a part of which is arranged in the cavity and connected to the rotating shaft, and the handle is movably arranged on the handle seat.

9. The mounting mechanism according to any one of claims 1 to 8, characterized in that: The main body is also provided with a notch, and along the axial direction of the mounting assembly, the notch is used to be opposite to the code disc of the rotor.

10. The mounting mechanism according to any one of claims 1 to 8, characterized in that: A convex rib is provided on the end surface of the main body, and at least a portion of the convex rib extends along the circumferential direction of the mounting assembly for matching with the stator.

11. The mounting mechanism according to any one of claims 1 to 8, characterized in that: The main body is provided with a mounting hole, and the mounting assembly is rotatably disposed in the mounting hole; The mounting mechanism further comprises: The bearing assembly is arranged in the mounting hole and located between the main body and the mounting assembly.

12. An encoder, characterized in that: The assembly is performed using the mounting mechanism described in any one of claims 1 to 11.

13. The encoder according to claim 12, characterized in that The encoder comprises: A stator, used to be detachably connected to the main body, and the stator has a mounting cavity; A rotor, disposed in the mounting cavity; Wherein, when the movable member is located at the first position, the portion of the matching member exposed from the main body abuts against the rotor, and the matching member can drive the rotor to rotate; When the movable member is located at the second position, a gap exists between the portion of the fitting member exposed outside the main body and the rotor.

14. The encoder according to claim 13, characterized in that The stator comprises: A bracket, used to be detachably connected to the main body; A circuit board is arranged on the bracket and enclosed with the bracket to form the installation cavity; A photocell, arranged on the circuit board and located in the mounting cavity, wherein the photocell is provided with a photocell track; The rotor comprises: A code disc, wherein the code disc is provided with a code disc track; A code disc support, arranged on a side of the code disc away from the circuit board, and the code disc support is provided with a matching hole; Wherein, when the movable member is located at the first position, the portion of the matching member exposed from the main body is located in the matching hole and abuts against the inner wall of the matching hole, and the matching member can drive the rotor to rotate so that the code disk track and the photocell track are opposite to each other along the axial direction of the rotor; When the movable member is located at the second position, a gap exists between the portion of the matching member exposed outside the main body and the inner wall of the matching hole.

15. A servo motor, characterized in that: Comprising an encoder as claimed in any one of claims 12 to 14.

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