Double-code-disc encoder

Abstract

The invention discloses a double-code-disc encoder, which comprises an input end code disc, an output end code disc, a circuit board, an output shaft and an input shaft, the input end code disc is fixed with the input shaft, an inner hole of the input end code disc is provided with a step, the output end code disc is concentrically installed in the step of the input end code disc, the input end code disc is provided with a shaft shoulder, and the shaft shoulder is provided with a shaft hole. The input end code disc is provided with a radial installation hole, and the shaft shoulder is correspondingly provided with a groove, so that a tool can be dismounted from the circuit board side through the groove. The double-code-disc encoder has the advantages that the input-end code disc and the output-end code disc of the double-code-disc encoder are installed on the same side of the input shaft and the output shaft to be tested respectively, the output-end code disc is embedded in the center of the input-end code disc, the input-end code disc is provided with a shaft shoulder and a groove, so that a tool can be conveniently disassembled and assembled from the circuit board side through the groove, the overall rigidity can be enhanced, and the reliability of the encoder is improved. The axial length is effectively shortened, the size is reduced, and the space utilization rate is improved.

Description

Technical Field

[0001] The invention relates to an encoder, in particular to a double-code disc encoder. Background Art

[0002] An encoder is a device that compiles and converts signals or data into a signal form that can be used for communication, transmission and storage. As a part of the encoder, the code disc is a rotating bearing digital counter, which is mainly used for counting and measurement. It is widely used in mechanical manufacturing, circuit design, automobile repair, laser processing and other fields. It can accurately display the rotation angle of rotating objects, measure length and speed, control industrial production and other tasks. The working principle of the code disc is to convert the rotational motion into a digital signal, and convert the digital signal into a readable number through mechanical transmission and electronic processing.

[0003] For existing encoders, the angular displacement of the input and output ends needs to be tested separately, which results in a relatively long axial distance, a large space occupancy rate, and inconvenient installation and disassembly. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art and provide a double-code disc encoder with a short axial distance and easy to disassemble and assemble.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: a dual-code disc encoder, including an input end code disc, an output end code disc, a circuit board, an output shaft and an input shaft, the input end code disc is fixed to the input shaft, the inner hole of the input end code disc is provided with a step, the output end code disc is concentrically installed in the step of the input end code disc, the input end code disc is provided with a shoulder, the input end code disc is provided with a radial mounting hole, and a groove is opened on the shoulder corresponding to it, so that the tool can be disassembled and assembled from the circuit board side through the groove.

[0006] Preferably, an output shaft sleeve is arranged outside the output shaft, an output shaft sleeve fixing hole is arranged on the output shaft sleeve, an output fixing sleeve is arranged outside the output shaft sleeve, a fixing sleeve fixing hole is arranged on the output fixing sleeve, and the output shaft is fixed to the output shaft sleeve and the output fixing sleeve; the output end code disk is fixed on the output fixing sleeve.

[0007] Preferably, an input sleeve is arranged outside the input shaft, an input fixing hole is arranged on the input sleeve, an input fixing sleeve is arranged outside the input sleeve, and the input output shaft is fixed via the input sleeve and the input fixing sleeve; the input end code disc is fixed to the input fixing sleeve.

[0008] Preferably, the front ends of the output shaft sleeve and the output fixing sleeve enter the central hole of the circuit board, and the output shaft sleeve fixing hole and the output fixing sleeve fixing hole are located on one side of the central hole.

[0009] Preferably, the input fixing sleeve is further provided with an axial mounting hole, and axial mounting can be performed through the axial mounting hole.

[0010] Compared with the prior art, the advantages of the present invention are that the input code disc and the output code disc of the dual-code disc encoder are respectively installed on the same side of the input shaft and the output shaft to be measured, and the output code disc is nested in the center position of the input code disc. The input code disc is provided with a shoulder and a groove to facilitate the tool to be disassembled and assembled from the circuit board side through the groove, and the overall rigidity can be enhanced, the axial length can be effectively shortened, the volume can be reduced, and the space utilization rate can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front view of a dual-code disc encoder according to an embodiment of the present invention.

[0012] Figure 2 yes Figure 1 A-A section view.

[0013] Figure 3 It is an exploded view of a dual-code disc encoder according to an embodiment of the present invention.

[0014] Figure 4 It is a stereoscopic diagram of a dual code disk encoder according to an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] like Figure 1-4 As shown, a dual-code disc encoder includes an input code disc 1, an output code disc 2, a circuit board 3, an output shaft 4 and an input shaft 5.

[0017] An output sleeve 41 is disposed outside the output shaft 4, and an output sleeve fixing hole 411 is disposed on the output sleeve 41. An output fixing sleeve 42 is disposed outside the output sleeve, and a fixing sleeve fixing hole 421 is disposed on the output fixing sleeve 42. The output sleeve 41 and the output fixing sleeve 42 are fixed to the output shaft 4.

[0018] The output end code disc 2 is fixed on the output fixing sleeve 42 .

[0019] An input sleeve 51 is disposed outside the input shaft 5 , an input fixing hole 511 is disposed on the input sleeve 51 , an input fixing sleeve 52 is disposed outside the input sleeve, and the input shaft 5 is fixed to the input output shaft 5 through the input sleeve 51 and the input fixing sleeve 52 .

[0020] The input end code disc 1 is fixed to the input fixing sleeve 52 .

[0021] The inner hole of the input fixing sleeve 52 is provided with a step, and the output fixing sleeve 42 is concentrically installed in the step of the input fixing sleeve 52 .

[0022] The input fixing sleeve 52 is provided with a radial mounting hole 524 , through which the input fixing sleeve 52 can be radially mounted.

[0023] The input fixing sleeve 52 is provided with a shaft shoulder 522 and a slot 521 to reserve space for screw fixing of the circuit board 3 so as to facilitate the disassembly and assembly of tools from the side of the circuit board 3 through the slot 6 to prevent axial space limitation.

[0024] Of course, the input fixing sleeve 52 may also be provided with an axial mounting hole 523 , through which the input fixing sleeve 52 can be axially mounted.

[0025] The front ends of the output shaft sleeve 41 and the output fixing sleeve 42 enter the central hole 31 of the circuit board 3, and the output shaft sleeve fixing hole 411 and the fixing sleeve fixing hole 421 are on one side of the central hole 31. In this way, the axial dimension of the circuit board 3 can be used for the axial connection of the output shaft 4, thereby saving axial installation space.

[0026] The circuit board 3 is located at the rear side of the input end code disc 1 and the output end code disc 2, and can read data from both the input end code disc 1 and the output end code disc 2 at the same time.

Claims

1. A dual code disc encoder, characterized in that: It includes an input end code disk, an output end code disk, a circuit board, an output shaft and an input shaft. The input end code disk is fixed to the input shaft. The inner hole of the input end code disk is provided with a step. The output end code disk is concentrically installed in the step of the input end code disk. The input end code disk is provided with a shoulder. The input end code disk is provided with a radial mounting hole, and a groove is opened on the shoulder corresponding to the hole so that the tool can be disassembled and assembled from the circuit board side through the groove.

2. The dual code disc encoder according to claim 1, characterized in that: An output sleeve is arranged outside the output shaft, an output sleeve fixing hole is arranged on the output sleeve, an output fixing sleeve is arranged outside the output sleeve, a fixing sleeve fixing hole is arranged on the output fixing sleeve, and the output sleeve and the output shaft are fixed by the output sleeve and the output fixing sleeve; the output end code disc is fixed on the output fixing sleeve.

3. The dual code disc encoder according to claim 1 or 2, characterized in that: An input shaft sleeve is arranged outside the input shaft, an input fixing hole is arranged on the input shaft sleeve, an input fixing sleeve is arranged outside the input shaft sleeve, and the input shaft is fixed to the input output shaft through the input shaft sleeve and the input fixing sleeve; the input end code disk is fixed to the input fixing sleeve.

4. The dual code disc encoder according to claim 2, characterized in that: The front ends of the output shaft sleeve and the output fixing sleeve enter the central hole of the circuit board, and the output shaft sleeve fixing hole and the output fixing sleeve fixing hole are located on one side of the central hole.

5. The dual code disc encoder according to claim 1, characterized in that: The input fixing sleeve is also provided with an axial mounting hole, and can also be axially mounted through the axial mounting hole.

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