A code disk

Abstract

The present invention provides a code disk, which includes a fixed shaft and a magnetic disk. The magnetic disk is located on one side of the fixed shaft. The magnetic disk is provided with a first through hole. The fixed shaft is provided with a second through hole. The first through hole and the second through hole are positioned opposite to each other. A plurality of fixing grooves are provided around the second through hole. The code disk of the present invention is provided by inserting a snap tool into the fixing groove. The snap tool is snapped into the fixing groove. The fixing groove is used to limit the snap tool to prevent the snap tool from sliding. By rotating the snap tool, the snap tool drives the code disk to rotate, thereby fixing the code disk on a fixed object or on a rotating shaft for testing the code disk. During the installation of the code disk, the code disk is easily installed, saving time and effort, and improving installation efficiency.

Description

Technical Field

[0001] The present invention relates to the field of encoders, and in particular to a code disk. Background Art

[0002] The code disk is part of a digital encoder that measures angular displacement. It has the advantages of strong resolution, high measurement accuracy and reliable operation. It is the most common displacement sensor for measuring the angular position of a shaft. Code disks are divided into two types: absolute encoders and incremental encoders. The former can directly provide a digital code relative to the angular position, while the latter uses a computer system to add or subtract the pulse amount generated by the rotating code disk from a certain reference number to obtain the angular displacement. The code disk in the existing technology has no self-fixing function and is usually fixed by bonding or external structure. As a result, the installation and removal of the code disk is very time-consuming and labor-intensive, and inconvenient to use.

[0003] Therefore, it is necessary to provide a code disk to solve the above technical problems. Summary of the Invention

[0004] The present invention provides a code disc to solve the problem that the code disc in the prior art has no snap-fit structure, resulting in the code disc being very time-consuming and labor-intensive to install and disassemble, and being inconvenient to use.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a code disk, including a fixed shaft and a magnetic disk, the magnetic disk is located on one side of the fixed shaft, the magnetic disk is provided with a first through hole, the fixed shaft is provided with a second through hole, the first through hole and the second through hole correspond to each other, and a plurality of fixing grooves are provided on the circumferential side of the second through hole.

[0006] In the present invention, the diameter of the second through hole is smaller than the diameter of the first through hole, and a first limiting groove is formed between the magnetic disk and the fixed shaft.

[0007] In the present invention, a positioning protrusion is provided on a side of the fixed shaft close to the magnetic disk, and the positioning protrusion is used to limit the magnetic disk.

[0008] In the present invention, the distances between the plurality of fixing grooves are equal.

[0009] In the present invention, threads are provided on the inner circumference and / or outer circumference of the fixed shaft.

[0010] In the present invention, the first limiting groove is provided with a chamfer.

[0011] In the present invention, the fixed shaft includes a limiting section and a rotating section, and the diameter of the second through hole of the rotating section is smaller than the diameter of the second through hole of the limiting section.

[0012] In the present invention, a code disk includes a fixed shaft and a magnetic disk, wherein the magnetic disk is located on one side of the fixed shaft;

[0013] The fixed shaft includes a second through hole, a positioning protrusion, a chamfer, a thread, and a plurality of fixing grooves, wherein the second through hole passes through the fixed shaft, the positioning protrusion is located on a side close to the magnetic disk, and the thread is located on an outer circumference and / or an inner circumference of the fixed shaft;

[0014] The fixed shaft includes a limiting section and a rotating section, and a diameter of the second through hole of the rotating section is smaller than a diameter of the second through hole of the limiting section.

[0015] The magnetic disk includes a first through hole, which is opposite to the second through hole and forms a first limiting groove with the fixed shaft. The first limiting groove is provided with a chamfer, and the diameter of the second through hole is smaller than the diameter of the first through hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects: a code disk of the present invention is provided with a first through hole on the disk and a second through hole on the fixed shaft, the first through hole and the second through hole are positioned relative to each other, and a plurality of fixing grooves are provided in the second through hole. The fixing grooves facilitate the insertion of the snap tool into the fixing grooves, thereby facilitating the rotational installation and disassembly of the code disk, saving time and effort and improving the efficiency of installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the present invention.

[0018] Figure 1 It is a stereoscopic diagram of a preferred embodiment of the code disk of the present invention.

[0019] Figure 2 It is a side view of a preferred embodiment of the code wheel of the present invention.

[0020] Figure 3 for Figure 2 Sectional view along the cutting line AA. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] The code disc in the prior art does not have the function of self-fixation, and is usually fixed by bonding or external structure pressing, which makes the code disc very time-consuming and labor-intensive to install and remove, and inconvenient to use.

[0023] The following is a preferred embodiment of a code disc and a fixture provided by the present invention that can solve the above technical problems.

[0024] Please refer to Figure 1 、 Figure 2 and Figure 3 ,in Figure 1 This is a stereogram of a preferred embodiment of the code disk of the present invention. Figure 2 A side view of a preferred embodiment of the code disk of the present invention is shown in FIG. Figure 3 for Figure 2 Sectional view along the cutting line AA.

[0025] In the figures, structurally similar elements are denoted by the same reference numerals.

[0026] The terms "first" and "second" in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, and should not be used as a limitation on the order of precedence.

[0027] The present invention provides a code disk, including a fixed shaft 11 and a disk 12. The disk 12 is located on one side of the fixed shaft 11. The disk 12 is provided with a first through hole, and the fixed shaft 11 is provided with a second through hole. The first through hole and the second through hole correspond to each other, and a plurality of fixing grooves 111 are provided on the circumferential side of the second through hole.

[0028] Among them, the fixed shaft 11 is located on one side of the disk 12, and the fixed shaft 11 is used to support the disk 12. The first through hole of the disk 12 corresponds to the second through hole of the fixed shaft 11. The second through hole of the fixed shaft 11 is provided with multiple fixing grooves 111, which facilitates the corresponding snap tool to extend into the second through hole to rotate the fixed shaft 11.

[0029] The diameter of the second through hole is smaller than that of the first through hole. A first limiting groove 13 is formed between the disk 12 and the fixed shaft 11. A positioning protrusion 113 is provided on the side of the fixed shaft 11 close to the disk 12. The positioning protrusion 113 is used to limit the disk 12. The positioning protrusion 113 is used to limit the disk 12. When the disk 12 is installed on the fixed shaft 11, the disk 12 is prevented from shaking. The diameter of the second through hole is smaller than that of the first through hole. The first limiting groove 13 is used to limit the snap tool to prevent the snap tool from continuing to extend into the second through hole.

[0030] The distances between the multiple fixing grooves 111 are equal, a thread 112 is provided on the inner circumference or outer circumference of the fixed shaft 11, and the first limiting groove 13 is provided with a chamfer. The distances between the multiple fixing grooves 111 are equal, and the snapping tool applies the same force when rotating the fixed shaft 11, which facilitates rotation. The first limiting groove 13 is provided with a chamfer, and the chamfer is used to facilitate the snapping tool to extend into the second through hole. A thread 112 is provided on the inner circumference or outer circumference of the fixed shaft 11, which facilitates the fixing of the fixed shaft 11 on the fixed object.

[0031] The fixed shaft 11 includes a limiting section 115 and a rotating section 114. The diameter of the second through hole of the rotating section 114 is smaller than the diameter of the second through hole of the limiting section 115. It is used to prevent the fixed object from continuing to extend to the other side of the code disk when the rotating section 114 is fixed to the fixed object, and is used to limit the fixed object.

[0032] Working principle:

[0033] The disk 12 is located on one side of the fixed shaft 11. The disk 12 is limited on the fixed shaft 11 by the positioning protrusion 113 to prevent the disk 12 from moving or shaking. The peripheral side of the second through hole of the fixed shaft 11 is provided with a chamfer to facilitate the insertion of the snap tool into the fixed shaft 11 to rotate it. The inner or outer side of the fixed shaft 11 is provided with a thread 112, and the thread 112 is used to fix the fixed shaft 11 on a fixed object.

[0034] First, insert the snapping tool into the second through hole, and snap the snapping tool into the fixing groove 111. By rotating the snapping tool, the snapping tool drives the fixing shaft 11 to rotate, thereby facilitating the fixing of the code disk on the fixed object, which not only saves time and effort, but also is convenient to use.

[0035] The code disk of this preferred embodiment is provided with a first through hole on the magnetic disk and a second through hole on the fixed shaft. The first through hole and the second through hole are positioned opposite to each other, and a plurality of fixing grooves are provided in the second through hole. The fixing grooves facilitate the insertion of the snap tool into the fixing grooves, making it convenient to rotate and install the code disk, saving time and effort when installing and disassembling the code disk, and being easy to use.

[0036] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A code disk, characterized in that: The code disc comprises a fixed shaft and a magnetic disk, wherein the magnetic disk is located on one side of the fixed shaft, the magnetic disk is provided with a first through hole, and the fixed shaft is provided with a second through hole, the first through hole and the second through hole correspond to each other, and a plurality of fixing grooves are provided on the circumference of the second through hole, wherein the plurality of fixing grooves are used for inserting a snap tool into the fixing grooves to rotate and install and remove the code disc; The diameter of the second through hole is smaller than that of the first through hole, and a first limiting groove is formed between the magnetic disk and the fixed shaft; A positioning protrusion is provided on one side of the fixed shaft close to the magnetic disk, and the positioning protrusion is used to limit the magnetic disk; The inner circumference and / or outer circumference of the fixed shaft is provided with threads.

2. The code wheel according to claim 1, characterized in that The distances between the plurality of fixing grooves are equal.

3. The code wheel according to claim 1, characterized in that The first limiting groove is provided with a chamfer.

4. The code wheel according to claim 1, characterized in that The fixed shaft includes a limiting section and a rotating section, and a diameter of the second through hole of the rotating section is smaller than a diameter of the second through hole of the limiting section.

5. A code disk, characterized in that: It includes a fixed shaft and a magnetic disk, wherein the magnetic disk is located on one side of the fixed shaft; The fixed shaft includes a second through hole, a positioning protrusion, a chamfer, a thread, and a plurality of fixing grooves, wherein the plurality of fixing grooves are used for inserting a snap tool into the fixing grooves to rotatably install and remove the code disk. The second through hole passes through the fixed shaft, the positioning protrusion is located on a side close to the disk, and the thread is located on the outer circumference and / or inner circumference of the fixed shaft; The fixed shaft includes a limiting section and a rotating section, and the diameter of the second through hole of the rotating section is smaller than the diameter of the second through hole of the limiting section; The magnetic disk includes a first through hole, which is opposite to the second through hole and forms a first limiting groove with the fixed shaft. The first limiting groove is provided with a chamfer, and the diameter of the second through hole is smaller than the diameter of the first through hole.

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