Hollow integrated encoder

Abstract

The hollow integrated encoder comprises a PCB, a rotor code disc, a mounting plate assembly and a plurality of fixing screws, the rotor code disc comprises a shaft sleeve and a grating disc, the grating disc is sleeved on the outer wall of the shaft sleeve, the grating disc and the shaft sleeve are coaxially arranged, the PCB is provided with a central hole, the upper end of the shaft sleeve is mounted in the central hole, and the lower end of the shaft sleeve is mounted on the mounting plate assembly. The upper surface of the shaft sleeve is connected with the lower surface of the mounting plate assembly, a plurality of connecting columns are installed on the upper surface of the PCB, a plurality of fixing holes are formed in the outer wall of the shaft sleeve, and one end of each fixing screw is installed in the corresponding fixing hole and abuts against the outer wall of the output shaft of the motor in a clamped mode. Through application of the hollow integrated encoder provided by the utility model, the PCB and the rotor code disc are fixedly connected through the mounting plate assembly to form a compact unit, so that the whole volume structure is compact and small, the installation is convenient, and the shaft sleeve and the output shaft of the motor are installed and fixed through a plurality of fixing screws, which is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of encoders, in particular to a hollow integrated encoder. Background Art

[0002] With the rapid development of industrial automation and precision control technology, encoders are widely used in the industrial field as the most commonly used sensor accessories. Encoders can be divided into integral type (with bearings and shafts inside the product) and split type. Compared with the two, the advantage of split encoder products is their small size, but the scattered structure also causes inconvenience in installation and debugging at the installation and use ends. At present, most integral encoder products in the existing technology have bearings and shafts inside, and rely on their bearings or shafts to keep the PCB board and the rotor code disk in position. This method has more parts and a larger volume because of the bearing or shaft structure. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of the utility model is to provide a hollow integrated encoder, comprising:

[0004] PCB board, rotor code disk, mounting plate assembly and several fixing screws, the rotor code disk includes a sleeve and a grating disk, the grating disk is sleeved on the outer wall of the sleeve, the grating disk is coaxially arranged with the sleeve, the PCB board is provided with a center hole, the upper end of the sleeve is installed in the center hole, the upper surface of the sleeve is connected to the lower surface of the mounting plate assembly, the upper surface of the PCB board is provided with several connecting columns, several connecting columns are arranged along the circumference of the center hole, the upper surfaces of several connecting columns are connected to the lower surface of the mounting plate assembly, the sleeve has a mounting channel, the sleeve is sleeved on the output shaft of a motor through the mounting channel, the outer wall of the sleeve is provided with several fixing holes, one end of each fixing screw is installed in a corresponding fixing hole and is clamped on the outer wall of the output shaft of the motor.

[0005] In another preferred embodiment, the mounting plate assembly includes: a mounting plate body, a plurality of first mounting screws and a plurality of second mounting screws, the upper surface of the mounting plate body is provided with a plurality of first mounting holes and a plurality of second mounting holes, the upper surface of the sleeve is provided with a plurality of third mounting holes, the plurality of third mounting holes are arranged along the circumference of the sleeve, the upper surface of the connecting column is provided with a plurality of fourth mounting holes, the lower end of each of the first mounting screws passes through a corresponding one of the first mounting holes and is installed in a corresponding one of the third mounting holes, the lower end of each of the second mounting screws passes through a corresponding one of the second mounting holes and is installed in a corresponding one of the fourth mounting holes.

[0006] In another preferred embodiment, the plurality of fixing holes are divided into a first hole group and a second hole group, the first hole group is located at an upper portion of the shaft sleeve, and the second hole group is located at a lower portion of the shaft sleeve.

[0007] In another preferred embodiment, it also includes: a plurality of connecting screws, a plurality of first connecting holes are opened on the upper surface of the PCB board, the plurality of first connecting holes are arranged along the circumference of the PCB board, the plurality of first connecting holes are arranged close to the outer edge of the PCB board, and each of the connecting screws is installed in a corresponding first connecting hole.

[0008] In another preferred embodiment, the motor further has a base, and a plurality of second connection holes are formed on the upper surface of the base, and the lower end of each of the connection screws passes through a corresponding first connection hole and is installed in a corresponding second connection hole.

[0009] In another preferred embodiment, a plurality of operating openings are formed on the outer wall of the base, and each of the operating openings is arranged opposite to a corresponding one of the fixing holes.

[0010] In another preferred embodiment, it further comprises: a reflective optical element, wherein a through hole is provided on the upper surface of the PCB board, the through hole is arranged directly above the grating disk, and the reflective optical element is installed in the through hole.

[0011] Due to the adoption of the above technical solution, the utility model has the following positive effects compared with the prior art: through the application of the utility model, a hollow integrated encoder is provided, and the PCB board and the rotor code disk are fixedly connected by the mounting plate assembly to form a compact unit, so that the overall volume structure is compact and small, and it is easy to install, and the shaft sleeve is installed and fixed to the output shaft of the motor by a plurality of fixing screws, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an exploded schematic diagram of a first embodiment of a hollow integrated encoder of the utility model;

[0013] Figure 2 It is a cross-sectional schematic diagram of a first embodiment of a hollow integrated encoder of the utility model;

[0014] Figure 3 This is a schematic diagram of the installation of a first embodiment of a hollow integrated encoder of the utility model;

[0015] Figure 4 It is a cross-sectional schematic diagram of a second embodiment of a hollow integrated encoder of the utility model;

[0016] Figure 5It is a cross-sectional schematic diagram of a third embodiment of a hollow integrated encoder of the utility model.

[0017] In the accompanying drawings: 1. PCB board; 2. rotor code disk; 3. fixing screw; 4. bushing; 5. grating disk; 6. center hole; 7. connecting column; 8. output shaft; 9. fixing hole; 10. mounting plate body; 11. first mounting screw; 12. second mounting screw; 13. first mounting hole; 14. second mounting hole; 15. third mounting hole; 16. fourth mounting hole; 17. connecting screw; 18. first connecting hole; 19. base; 20. second connecting hole; 21. operating port; 22. reflective optical element. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0019] like Figures 1 to 5 As shown, a hollow one-piece encoder of a preferred embodiment is shown, comprising:

[0020] PCB board 1, rotor code disk 2, mounting plate assembly and several fixing screws 3, rotor code disk 2 includes a sleeve 4 and a grating disk 5, grating disk 5 is sleeved on the outer wall of sleeve 4, grating disk 5 and sleeve 4 are coaxially arranged, PCB board 1 is provided with a center hole 6, the upper end of sleeve 4 is installed in the center hole 6, the upper surface of sleeve 4 is connected with the lower surface of mounting plate assembly, the upper surface of PCB board 1 is provided with several connecting columns 7, several connecting columns 7 are arranged along the circumference of center hole 6, the upper surfaces of several connecting columns 7 are connected with the lower surface of mounting plate assembly, sleeve 4 has a mounting channel, sleeve 4 is sleeved on output shaft 8 of a motor through the mounting channel, the outer wall of sleeve 4 is provided with several fixing holes 9, one end of each fixing screw 3 is installed in a corresponding fixing hole 9 and is clamped on the outer wall of output shaft 8 of the motor.

[0021] During actual use, the PCB board 1 and the shaft sleeve 4 of the rotor code disk 2 are first fixedly connected by a plurality of first mounting screws 11 and a plurality of second screws, and then the shaft sleeve 4 is installed on the output shaft 8 of the motor by a plurality of fixing screws 3, and the PCB board 1 and the base of the motor are connected by a plurality of connecting screws 17, and finally, the plurality of first mounting screws 11 and the second mounting screws 12 are removed to disassemble the mounting plate body 10, thereby completing the installation and fixation of the utility model.

[0022] Further, as a preferred embodiment, the mounting plate assembly includes: a mounting plate body 10, a plurality of first mounting screws 11 and a plurality of second mounting screws 12, a plurality of first mounting holes 13 and a plurality of second mounting holes 14 are provided on the upper surface of the mounting plate body 10, a plurality of third mounting holes 15 are provided on the upper surface of the shaft sleeve 4, and the plurality of third mounting holes 15 are arranged along the circumference of the shaft sleeve 4, a plurality of fourth mounting holes 16 are provided on the upper surface of the connecting column 7, the lower end of each first mounting screw 11 passes through a corresponding first mounting hole 13 and is installed in a corresponding third mounting hole 15, and the lower end of each second mounting screw 12 passes through a corresponding second mounting hole 14 and is installed in a corresponding fourth mounting hole 16. Further, in actual use, the upper surface of the connecting column 7 is in close contact with the lower surface of the mounting plate body 10 to prevent the mounting plate body 10 from being deformed when the second mounting screw 12 is tightened.

[0023] Further, as a preferred embodiment, the plurality of fixing holes 9 are divided into a first hole group and a second hole group, the first hole group is located at the upper part of the sleeve 4, and the second hole group is located at the lower part of the sleeve 4. Further, the fixing holes 9 are divided into a first hole group and a second hole group, and the first hole group and the second hole group are respectively located at the upper part and the lower part of the sleeve 4, so that when the sleeve 4 is installed, the position of the sleeve 4 on the output shaft 8 of the motor can be adjusted according to actual conditions, and the application range is wider.

[0024] Furthermore, as a preferred embodiment, it also includes: a plurality of connecting screws 17, a plurality of first connecting holes 18 are opened on the upper surface of the PCB board 1, the plurality of first connecting holes 18 are arranged along the circumference of the PCB board 1, the plurality of first connecting holes 18 are all arranged close to the outer edge of the PCB board 1, and each connecting screw 17 is installed in a corresponding first connecting hole 18.

[0025] Further, as a preferred embodiment, the motor also has a base 19, and a plurality of second connection holes 20 are formed on the upper surface of the base 19, and the lower end of each connection screw 17 passes through a corresponding first connection hole 18 and is installed in a corresponding second connection hole 20. Further, in actual use, the sleeve 4 is first installed on the output shaft 8 of the motor, and then the PCB board 1 is fixedly connected to the base 19 of the motor through the cooperation of the plurality of connection screws 17, the plurality of first connection holes 18 and the plurality of second connection holes 20, so that the PCB board 1 and the rotor code disc 2 can maintain high-precision positioning, eliminating the inconvenience of on-site positioning and debugging.

[0026] Further, as a preferred embodiment, the outer wall of the base 19 is provided with a plurality of operation openings 21, and each operation opening 21 is arranged opposite to a corresponding fixing hole 9. Further, by providing the operation openings 21 on the outer wall of the base 19, it is convenient for the installation tool to pass through the operation hole to tighten the fixing screw 3.

[0027] Furthermore, as a preferred embodiment, it also includes: a reflective optical element 22, a through hole is provided on the upper surface of the PCB board 1, the through hole is arranged directly above the grating disk 5, and the reflective optical element 22 is installed in the through hole. Further, in actual use, the reflective optical element 22 has a light source emitting unit, a light source receiving unit and an optical detection chip, the upper surface of the grating disk 5 is a reflective surface, and is engraved with grating stripes, the light source emitting unit can be operated to emit a light source and irradiate the grating disk 5, when the grating disk 5 rotates, the grating stripes reflect the light differently, the light source receiving unit transmits the optical signal reflected by the grating disk 5 to the optical detection chip and converts it into data corresponding to the position and sends it to the host computer for processing.

[0028] Further, as a preferred embodiment, a plurality of receiving grooves are provided on the upper surface of the PCB board 1, and the connecting pillars 7 are installed in the receiving grooves, and the upper surface of the connecting pillars 7 is flush with the upper surface of the PCB board 1. Figure 4 As shown, the upper surface of the connecting column 7 is flush with the upper surface of the PCB board 1. At this time, the overall length of the shaft sleeve 4 located above the grating disk 5 is shorter, so that when the PCB board 1 is connected to the mounting plate body 10, the distance between the PCB board 1 and the grating disk 5 is smaller, further reducing the volume of the utility model and improving the scope of application. Furthermore, a fourth mounting hole 16 is opened on the upper surface of the PCB board 1, and the connecting column 7 is not required. Further, as Figure 5 As shown, the lower end of the shaft sleeve 4 is arranged flush with the lower surface of the grating disk 5, which further reduces the volume of the utility model and improves the scope of application.

[0029] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A hollow integrated encoder, characterized in that: include: PCB board, rotor code disk, mounting plate assembly and several fixing screws, the rotor code disk includes a sleeve and a grating disk, the grating disk is sleeved on the outer wall of the sleeve, the grating disk is coaxially arranged with the sleeve, the PCB board is provided with a center hole, the upper end of the sleeve is installed in the center hole, the upper surface of the sleeve is connected to the lower surface of the mounting plate assembly, the upper surface of the PCB board is provided with several connecting columns, several connecting columns are arranged along the circumference of the center hole, the upper surfaces of several connecting columns are connected to the lower surface of the mounting plate assembly, the sleeve has a mounting channel, the sleeve is sleeved on the output shaft of a motor through the mounting channel, the outer wall of the sleeve is provided with several fixing holes, one end of each fixing screw is installed in a corresponding fixing hole and is clamped on the outer wall of the output shaft of the motor.

2. The hollow integrated encoder according to claim 1, characterized in that: The mounting plate assembly includes: a mounting plate body, a plurality of first mounting screws and a plurality of second mounting screws, the upper surface of the mounting plate body is provided with a plurality of first mounting holes and a plurality of second mounting holes, the upper surface of the sleeve is provided with a plurality of third mounting holes, and the plurality of third mounting holes are arranged along the circumference of the sleeve, the upper surface of the connecting column is provided with a plurality of fourth mounting holes, the lower end of each of the first mounting screws passes through a corresponding one of the first mounting holes and is installed in a corresponding one of the third mounting holes, and the lower end of each of the second mounting screws passes through a corresponding one of the second mounting holes and is installed in a corresponding one of the fourth mounting holes.

3. The hollow integrated encoder according to claim 1, characterized in that: The plurality of fixing holes are divided into a first hole group and a second hole group, the first hole group is located at the upper part of the shaft sleeve, and the second hole group is located at the lower part of the shaft sleeve.

4. The hollow integrated encoder according to claim 1, characterized in that: Also includes: A plurality of connecting screws, wherein a plurality of first connecting holes are provided on the upper surface of the PCB board, wherein the plurality of first connecting holes are arranged along the circumference of the PCB board, and the plurality of first connecting holes are arranged close to the outer edge of the PCB board, and each of the connecting screws is installed in a corresponding first connecting hole.

5. The hollow integrated encoder according to claim 4, characterized in that: The motor also has a base, and a plurality of second connection holes are formed on the upper surface of the base. The lower end of each connection screw passes through a corresponding first connection hole and is installed in a corresponding second connection hole.

6. The hollow integrated encoder according to claim 5, characterized in that: The outer wall of the machine base is provided with a plurality of operating openings, and each of the operating openings is arranged opposite to a corresponding fixing hole.

7. The hollow integrated encoder according to claim 1, characterized in that: Also includes: A reflective optical element, wherein a through hole is provided on the upper surface of the PCB board, the through hole is arranged directly above the grating disk, and the reflective optical element is installed in the through hole.

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