Split type encoder, mounting seat and motor

Abstract

The invention discloses a split type encoder, a mounting base and a motor, and belongs to the technical field of encoders, the split type encoder comprises the mounting base, a support, a light source assembly, a code disc, a rotating shaft and a circuit board, the support is mounted on the mounting base, the circuit board is mounted on the support, and the circuit board and the support form a containing cavity; the coded disc and the rotating shaft are arranged in the containing cavity, the light source assembly is installed on the side face of the support, the support comprises an installation part and a containing part, the containing part is located at the upper end of the installation part, the installation part is connected with the installation base, the installation part is connected with the circuit board, and the circuit board is connected with the coded disc. And the outer diameter of the mounting part is smaller than that of the accommodating part. The outer diameter of the mounting part of the bracket is smaller than that of the accommodating part, so that a gap is formed between the bracket and the mounting seat when the bracket is mounted on the mounting seat, the contact area of the bracket and the mounting seat is reduced, the deformation of the mounting part in the mounting process is reduced, and the mounting precision is improved.

Description

Technical Field

[0001] The invention relates to the field of encoders, and in particular to a split encoder, a mounting seat and a motor. Background Art

[0002] An encoder is a device that compiles and converts signals (such as bit streams) or data into a signal form that can be used for communication, transmission, and storage. It includes integrated and split structures.

[0003] The installation steps between the existing split encoder and the servo motor are: fix the encoder bracket on the mounting base of the servo motor, then connect the code disc to the drive shaft of the servo motor, and then install the circuit board on the encoder base, and use the corresponding detection tool to detect the relative position between the circuit board and the code disc, and use the adjustment tool to adjust the position of the circuit board or the code disc so that the relative position between the two meets the requirements.

[0004] When installing a split encoder with a similar structure, the installation accuracy is low due to the difficulty in installation and positioning, and a lot of time is required to calibrate and correct it. Summary of the invention

[0005] In order to overcome the problems of low installation accuracy and efficiency of existing split encoders, the present invention aims to provide a split encoder, a mounting seat and a motor.

[0006] To achieve the above object, the technical solution of the present invention is:

[0007] First, a split encoder is provided, including a mounting seat, a bracket, a light source assembly, a code disc, a rotating shaft and a circuit board, the bracket is mounted on the mounting seat, the circuit board is mounted on the bracket and forms a receiving cavity with the bracket, the code disc and the rotating shaft are placed in the receiving cavity, the light source assembly is mounted on the side of the bracket, the bracket includes a mounting portion and a receiving portion, the receiving portion is located at the upper end of the mounting portion, the mounting portion is connected to the mounting seat, the mounting portion is connected to the circuit board, and the outer diameter of the mounting portion is smaller than the outer diameter of the receiving portion.

[0008] In one embodiment, a plurality of limiting columns and a first limiting piece are provided on the mounting seat, and the first limiting piece is located on the outer side of the limiting column.

[0009] In one embodiment, the connection between the first limiting piece and the limiting column is a concave arc shape, and the first limiting piece is higher than the limiting column.

[0010] In one embodiment, a plurality of limiting grooves are provided on the outer wall of the accommodation portion, and the limiting grooves are matched and connected with the first limiting pieces.

[0011] In one embodiment, a plurality of second limiting pieces are arranged on the outer wall of the accommodating portion, the second limiting pieces are arranged at intervals with the limiting grooves, and the second limiting pieces are higher than the accommodating portion.

[0012] In one embodiment, the bracket is made of plastic material.

[0013] Secondly, the present invention also provides a motor, including a motor body and a top cover, wherein the top cover is installed on the top of the motor body, and a receiving space is formed between the top cover and the motor body. It also includes any of the above-mentioned split encoders, and the split encoder is placed in the receiving space.

[0014] In addition, the present invention also provides a mounting seat for installing an encoder, comprising a mounting groove, in which the encoder is installed; a limiting column, which is arranged on the circumference of the mounting groove; a first limiting plate, which is installed on the outer side of the limiting column, and the first limiting plate is higher than the limiting column; the connection between the first limiting plate and the limiting column is a concave arc shape.

[0015] Finally, the present invention provides another motor, including a motor body and a top cover, characterized in that it also includes the above-mentioned mounting base, the mounting base is installed on the top of the motor body, the top cover is connected to the mounting base, and a accommodating space is formed between the top cover and the mounting base, and the magnetic woven magnet seat is placed in the accommodating space.

[0016] Beneficial effect: The present invention provides a suspended encoder mounting bracket. By making the outer diameter of the mounting portion of the bracket smaller than the outer diameter of the accommodating portion, a gap is formed between the bracket and the mounting seat when the bracket is mounted on the mounting seat, reducing the contact area between the bracket and the mounting seat, reducing the deformation of the mounting portion during installation, and also reducing the installation error between the mounting portion and the mounting seat during installation, thereby improving the overall accuracy of the bracket and the mounting seat during installation, thereby improving the installation efficiency. In addition, the mounting seat provided by the present invention is compatible with magnetic encoders and optical encoders, which can save production processes, improve production efficiency, and reduce production costs.

[0017] In order to make the above features and advantages of the invention more obvious and easy to understand, embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the exploded three-dimensional structure of the motor in Example 1 of the present invention.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the encoder in Example 1 of the present invention.

[0020] Figure 3 This is a schematic diagram of the exploded structure of the encoder in Example 1 of the present invention.

[0021] Figure 4 It is a cross-sectional schematic diagram of the encoder in Example 1 of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the mounting base in Example 1 of the present invention.

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the bracket in Example 1 of the present invention.

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the rotating shaft and the code disc in Example 1 of the present invention.

[0025] Figure 8 A schematic exploded view of the three-dimensional structure of the motor in Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose and technical solution of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1 As shown, the present invention provides a motor 1, including a motor body 11, an encoder 12 and a top cover 13, wherein the top cover 13 is installed on the top of the motor body 11, and a receiving space (not shown in the figure) is formed on the top of the motor body 11, and the encoder 12 is installed in the receiving space. Further, the motor body 11 includes a drive shaft 111, and the drive shaft 111 passes through the motor body 11 and is connected to the encoder 12, so that the encoder 12 converts the rotation data of the drive shaft 111 into a pulse signal output. In this embodiment, the encoder 12 is an optical encoder.

[0028] Please combine Figure 2 and Figure 3The encoder 12 includes a bracket 122, and the bracket 122 is mounted on a mounting seat 121. A gap 127 is formed between the bottom of the bracket 122 and the mounting seat 121. A circuit board 126 is mounted on the top of the bracket 122 to form a receiving cavity 128 with the bracket 122. The code disc 124 and the rotating shaft 125 are placed in the receiving cavity 128. The drive shaft 111 passes through the mounting seat 121 and the bracket 122 and is connected to the rotating shaft 125. The code disc 124 collects the rotation signal of the rotating shaft 125 and converts it into a pulse signal for output. In an embodiment of the present invention, the code disc 124 uses a light source assembly 123 to collect the rotation signal of the rotating shaft 125, and the light source assembly 123 is mounted on the side of the bracket 122.

[0029] For details, please combine Figures 3 to 5 The mounting seat 121 is provided with a mounting groove 1211 for accommodating the bracket 122. The shape of the mounting groove 1211 is substantially the same as that of the bracket 122, and is circular in this embodiment. A circle of limiting bars 1212 is provided on the circumference of the mounting groove 1211. The bracket 122 is located in the limiting bars 1212 during installation, and the limiting bars 1212 are provided with a notch 1213 for the reserved position of the light source assembly 123. A plurality of limiting posts 1214 are provided on the limiting bars 1212. The limiting posts 1214 are higher than the limiting bars 1212 and are connected to the bracket 122. Specifically, a first limiting piece 1215 is provided on the outer side of the limiting post 1214. The first limiting piece 1215 is higher than the limiting post 1214, and the connection between the first limiting piece 1215 and the limiting post 1214 is in a concave arc shape.

[0030] Through the cooperation of the limiting column 1214, the first limiting piece 1215 and the concave arc connection, when the bracket 122 is to be installed on the mounting seat 121, the limiting column 1214 can be directly inserted into the corresponding position of the bracket 122 through the guidance of the first limiting piece 1215, so that the bracket 122 can be quickly installed on the mounting seat 121. At the same time, the limiting column 1214 is provided with a screw hole for fixed connection with the bracket 122.

[0031] Please combine again Figure 6 The bracket 122 includes a mounting portion 1221 and a receiving portion 1222. The receiving portion 1222 is located at the upper end of the mounting portion 1221. The mounting portion 1221 and the receiving portion 1222 can be integrally formed. The bracket 122 is connected to the mounting seat 121 through the mounting portion 1221. The receiving portion 1222 is used to receive the code disk 124 and the rotating shaft 125, and is also used to install the circuit board 126.

[0032] The outer diameter of the mounting portion 1221 is smaller than the outer diameter of the accommodating portion 1222, so that when the bracket 122 is installed on the mounting seat 121, a gap 127 is formed between the bracket 122 and the mounting seat 121. Compared with the mounting portion having the same outer diameter as the accommodating portion in the prior art, the contact area between the mounting portion 1222 and the mounting seat 121 in the present invention is greatly reduced, so that the deformation of the mounting portion 1222 during the installation process is reduced, and the installation error between the mounting portion 1222 and the mounting seat 121 during installation is reduced, and the overall accuracy of the mounting of the bracket 122 and the mounting seat 121 is improved, so that the code disk 124 is in a precise installation position, and the installation efficiency is improved. In addition, the bracket 122 is made of plastic as a whole, which has lower cost and is easier to correct compared with the metal bracket in the prior art.

[0033] The sides of the mounting portion 1221 and the accommodating portion 1222 are integrally provided with a mounting opening 1223. After the bracket 122 and the mounting seat 121 are installed and connected, the mounting opening 1223 is aligned with the notch 1213 on the limiting bar 1212, and is used to install the light source assembly 123, and is also used as an observation window during installation. An operation hole 1224 is also provided at the connection between the mounting opening 1223 and the mounting portion 1221, which is used for observation and installation of the rotating shaft 125. The mounting hole 1225 is provided on the connecting end surface of the mounting portion 1221 and the accommodating portion 1222, and the rotating shaft 125 is passed through the mounting hole 1225 and connected to the driving shaft 111.

[0034] A plurality of mounting posts 1226 are provided on the inner wall of the receiving portion 1222 for mounting the circuit board 126. A plurality of limiting grooves 1227 and a plurality of second limiting pieces 1228 are provided on the outer wall of the receiving portion 1222, and the limiting grooves 1227 and the second limiting pieces 1228 are arranged at intervals. The shape of the limiting groove 1227 matches the shape of the first limiting piece 1215 on the mounting seat 121. When installing the bracket 122, the limiting groove 1227 is aligned with the first limiting piece 1215 and snapped in, so as to complete the pre-installation and preliminary positioning of the bracket 122. The second limiting piece 1228 is slightly higher than the receiving portion 1222 and is used for positioning the circuit board 126.

[0035] like Figure 7As shown, the code disk 124 is installed on the top of the rotating shaft 125. A fixing hole 1251 is opened on the rotating shaft 125, and the rotating shaft 125 is fixedly connected to the driving shaft 111 through the fixing hole 1251. Then, the position of the code disk 124 is adjusted by the rotation of the driving shaft 111. After the position is determined, the code disk 124 and the rotating shaft 125 are fixed by glue cured by blue light irradiation.

[0036] Combine again Figures 1 to 7 To complete the installation of the motor 1, first install the mounting seat 121 to the top of the motor body 11; then align the limiting groove 1227 on the bracket 122 with the first limiting piece 1215 on the mounting seat 121 and snap them in, so as to complete the pre-connection installation of the bracket 122 and the mounting seat 121; then place the rotating shaft 125 and the code disk 124 in the accommodating portion 1222 of the bracket 122, so that the rotating shaft 125 is inserted into the mounting hole 1225 and connected with the drive shaft 111; then install the circuit board 126 on the accommodating portion 1222, and the positions of the rotating shaft 125 and the code disk 124 can be observed through the installation opening 1223 and corrected; finally, fix the fixing hole 1251 of the rotating shaft 125 to the driving shaft 111 through the operating hole 1224, and tighten the various fixing parts (such as screws, etc.) between the bracket 122 and the mounting seat 121, and install the light source assembly 123 into the installation opening 1223 to complete the installation of the motor 1.

[0037] Of course, the mounting seat 121 provided by the present invention is also suitable for magnetically engraved motors.

[0038] like Figure 8 As shown, the present invention also provides another magnetic encoding motor 2, including a motor body 21, a mounting seat 221, a magnetic encoding magnet seat 222 and a top cover 23, wherein the mounting seat 221 is installed on the top of the motor body 21, the top cover 23 is connected to the mounting seat 221, and a receiving space is formed between the top cover 23 and the mounting seat 221, and the magnetic encoding encoder is placed in the receiving space through the magnetic encoding magnet seat 222.

[0039] In summary, the present invention provides a suspended encoder mounting bracket, by making the outer diameter of the mounting portion 1221 of the bracket 122 smaller than the outer diameter of the accommodating portion 1222, so that when the bracket 122 is installed on the mounting seat 121, a gap 127 is formed between the bracket 122 and the mounting seat 121, thereby reducing the contact area between the bracket 122 and the mounting seat 121. The deformation of the mounting portion 1222 is reduced during the installation process, and the installation error between the mounting portion 1222 and the mounting seat 121 is also reduced during installation, thereby improving the overall accuracy of the installation of the bracket 122 and the mounting seat 121, thereby improving the installation efficiency. In addition, the bracket 122 is made of plastic as a whole, which has lower cost and is easier to correct compared to the metal bracket in the prior art. At the same time, through the cooperation of the limiting column 1214, the first limiting plate 1215 and the concave arc connection, when the bracket 122 is to be installed on the mounting seat 121, the limiting column 1214 can be directly snapped into the corresponding position of the bracket 122, so that the bracket 122 can be quickly installed on the mounting seat 121, which further improves the installation efficiency.

[0040] Although the present invention has been disclosed as above by way of embodiments, it is not intended to limit the present invention. Any person having ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the attached patent application.

Claims

1. A split encoder, comprising a mounting seat, a bracket, a light source assembly, a code disc, a rotating shaft and a circuit board, wherein the bracket is mounted on the mounting seat, the circuit board is mounted on the bracket and forms a receiving cavity with the bracket, the code disc and the rotating shaft are placed in the receiving cavity, and the light source assembly is mounted on the side of the bracket, characterized in that: The bracket includes a mounting portion and a receiving portion, wherein the receiving portion is located at the upper end of the mounting portion, the mounting portion is connected to the mounting seat, the receiving portion is connected to the circuit board, and the outer diameter of the mounting portion is smaller than the outer diameter of the receiving portion.

2. The split encoder according to claim 1, characterized in that: A plurality of limiting columns and a first limiting piece are arranged on the mounting seat, and the first limiting piece is located at the outer side of the limiting column.

3. The split encoder according to claim 2, characterized in that: The connection between the first limiting piece and the limiting column is in a concave arc shape, and the first limiting piece is higher than the limiting column.

4. The split encoder according to claim 3, characterized in that: A plurality of limiting grooves are provided on the outer wall of the accommodation portion, and the limiting grooves are matched and connected with the first limiting pieces.

5. The split encoder according to claim 4, characterized in that: A plurality of second limiting pieces are arranged on the outer wall of the accommodation portion, the second limiting pieces are arranged at intervals from the limiting grooves, and the second limiting pieces are higher than the accommodation portion.

6. The split encoder according to claim 1, characterized in that: The bracket is made of plastic material.

7. A motor, comprising a motor body and a top cover, wherein the top cover is mounted on the top of the motor body, and a receiving space is formed between the top cover and the motor body, characterized in that: It also includes a split encoder as described in any one of claims 1 to 6, wherein the split encoder is placed in the accommodating space.

8. A mounting base, used for mounting an encoder, characterized in that: include A mounting slot, in which the encoder is mounted; A limiting column, arranged on the circumference of the mounting groove; A first limiting piece, installed on the outer side of the limiting column, wherein the first limiting piece is higher than the limiting column; The connection between the first limiting piece and the limiting column is in a concave arc shape.

9. A motor, comprising a motor body and a top cover, characterized in that: It also includes the mounting seat as described in claim 8, wherein the mounting seat is installed on the top of the motor body, the top cover is connected to the mounting seat, and a receiving space is formed between the top cover and the mounting seat, and the magnetic woven magnet seat is placed in the receiving space.

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