An encoder device and a cable fixing structure of a photoelectric encoder

Abstract

The utility model discloses an encoder device and a cable fixing structure of a photoelectric encoder, which relates to the technical field of encoders. The cable fixing structure of the photoelectric encoder comprises: an encoder housing, which is provided with a through hole and a mounting hole concentrically distributed with the through hole, the aperture of the mounting hole is larger than the aperture of the through hole; a cable, which is inserted into the mounting hole and the through hole in sequence; a protective cover, which is sleeved on the cable; and a locking member, which is used to lock the protective cover in the mounting hole. The device is a stable, reliable, highly sealed, and compact encoder cable fixing structure.

Description

Technical Field

[0001] The utility model relates to the technical field of encoders, and more specifically, to a cable fixing structure of a photoelectric encoder. In addition, it also relates to an encoder device including the cable fixing structure of the photoelectric encoder. Background Art

[0002] Photoelectric encoder is a sensor that uses the photoelectric conversion effect to convert the mechanical geometric displacement on the output shaft into pulses or digital quantities. It has the characteristics of compact structure, strong stability, and high precision. The cable 01 of the photoelectric encoder is a data transmission cable used in occasions where the equipment unit needs to move back and forth or in fixed installation equipment.

[0003] In practical applications, the cable 01 must be able to operate synchronously with the equipment for a long time and be suitable for installation in various occasions where torsional and bending stresses exist simultaneously. If the fixed structure design of the cable 01 is unreasonable and the stability is insufficient, the cable 01 will be damaged during use, which will directly cause the encoder 03 to be unable to transmit data. At the same time, the encoder 03 itself needs to have a high degree of sealing to prevent pollutants such as oil and dust from entering the encoder 03. Therefore, the fixed structure of the cable 01 must have a high degree of sealing to meet the overall sealing requirements of the encoder 03.

[0004] In the prior art, the cable 01 of the encoder 03 is usually fixed in the following two ways:

[0005] The first type is that a rubber bushing 02 is sleeved on the cable 01, the rubber bushing 02 is bonded to the housing of the encoder 03 using a specific adhesive, and the cable 01 passes through the inner hole of the rubber bushing 02. The structure is as follows: Figure 1 The disadvantages of this solution are that the cable 01 has poor fixing reliability and poor tensile strength, and the cable 01 is easily damaged when subjected to force; and the encoder 03 has poor overall sealing and low protection level.

[0006] The second type is that the cable 01 is fixed by a cable fixing head structure 04, that is, the cable fixing head structure 04 is threadedly connected to the housing of the encoder 03, and the cable 01 passes through the cable fixing head structure 04 and then into the housing of the encoder 03. The structure is as follows Figure 2 The disadvantage of this solution is that the cable fixing head structure 04 is large in size, requires a large installation space, and requires nuts and sealing pads to be made separately for the cable fixing head during installation, resulting in more installation accessories.

[0007] In summary, how to provide a stable, reliable, highly sealed, and compact encoder cable fixing structure is a problem that currently needs to be solved urgently by those skilled in the art. Utility Model Content

[0008] In view of this, the purpose of the utility model is to provide a cable fixing structure for a photoelectric encoder, which is a stable, reliable, highly sealed and compact encoder cable fixing structure.

[0009] Another object of the utility model is to provide an encoder device including the cable fixing structure of the photoelectric encoder.

[0010] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0011] A cable fixing structure for a photoelectric encoder, comprising:

[0012] An encoder housing, which is provided with a through hole and a mounting hole distributed concentrically with the through hole, wherein the diameter of the mounting hole is larger than the diameter of the through hole;

[0013] A cable is inserted into the mounting hole and the through hole in sequence;

[0014] A protective cover, which is sleeved on the cable;

[0015] A locking piece is used to lock the protective cover in the mounting hole.

[0016] In one embodiment, the through hole and the mounting hole are provided on one side of the bottom of the encoder housing.

[0017] In one embodiment, the protective cover comprises a flexible structural member.

[0018] In one embodiment, the inner circumference of the protective sleeve is a circular hole structure, the outer circumference of the protective sleeve is a conical surface structure, and the inner circumference of the locking member is a conical hole structure matching the conical surface structure.

[0019] In one embodiment, an outer peripheral portion of the locking member is provided with an external thread, and an internal thread threadably connected to the external thread is provided in the mounting hole.

[0020] In one embodiment, the length of the protective cover is greater than or equal to the sum of the lengths of the through hole and the mounting hole.

[0021] In one embodiment, the locking member comprises a locking nut.

[0022] An encoder device comprises the cable fixing structure of any one of the photoelectric encoders.

[0023] When using the cable fixing structure of the photoelectric encoder provided by the utility model, first, the protective cover is placed on the cable, then the cable with the protective cover is inserted into the mounting hole and the through hole in turn, and finally, the protective cover is locked in the mounting hole using a locking member to compress the protective cover to achieve the purpose of fixing the cable and sealing, thereby completing the cable fixing operation of the photoelectric encoder.

[0024] The device fixes the cable to the encoder housing by setting concentrically distributed through holes and mounting holes, without the need to set up an additional cable fixing head structure, so that after the cable and the encoder housing are connected, the overall size does not exceed the size range of the encoder housing, reducing the overall size of the encoder and optimizing the installation space required for the encoder. Moreover, the cable is fixed to the encoder housing by means of locking parts and protective covers, which not only does not damage the cable, but also ensures that the cable is installed firmly and reliably, avoiding displacement or falling off of the cable fixing structure due to external forces such as impact and vibration during use, and avoiding the phenomenon that the cable is damaged by external forces such as tension.

[0025] In summary, the cable fixing structure of the photoelectric encoder provided by the utility model is a stable, reliable, highly sealed and compact encoder cable fixing structure.

[0026] In addition, the utility model also provides an encoder device including the cable fixing structure of the above-mentioned photoelectric encoder. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 This is a first schematic diagram of a cable fixing structure of an encoder in the prior art;

[0029] Figure 2 A second schematic diagram of a cable fixing structure of an encoder in the prior art;

[0030] Figure 3 A schematic diagram of the structure of the cable fixing structure of the photoelectric encoder provided by the utility model;

[0031] Figure 4 It is the assembly diagram of the cable fixing structure of the photoelectric encoder;

[0032] Figure 5Another assembly diagram of the cable fixing structure of the photoelectric encoder;

[0033] Figure 6 This is a schematic diagram of the installation of the cable fixing structure of the photoelectric encoder;

[0034] Figure 7 It is a schematic diagram of the structure of the encoder housing.

[0035] Figure 1-Figure 2 middle:

[0036] 01 is the cable, 02 is the rubber bushing, 03 is the encoder, and 04 is the cable fixing head structure;

[0037] Figure 3-7 middle:

[0038] 1 is the encoder housing, 2 is the protective cover, 3 is the locking piece, 4 is the cable, 5 is the through hole, and 6 is the mounting hole. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] The core of the utility model is to provide a cable fixing structure of a photoelectric encoder, which is a stable, reliable, highly sealed and compact encoder cable fixing structure. Another core of the utility model is to provide an encoder device including the cable fixing structure of the photoelectric encoder.

[0041] Please refer to Figures 3 to 7 ,in, Figure 3 A schematic diagram of the structure of the cable fixing structure of the photoelectric encoder provided by the utility model; Figure 4 It is the assembly diagram of the cable fixing structure of the photoelectric encoder; Figure 5 Another assembly diagram of the cable fixing structure of the photoelectric encoder; Figure 6 This is a schematic diagram of the installation of the cable fixing structure of the photoelectric encoder; Figure 7 It is a schematic diagram of the structure of the encoder housing.

[0042] This specific embodiment provides a cable fixing structure of a photoelectric encoder, including:

[0043] The encoder housing 1 is provided with a through hole 5 and a mounting hole 6 which is coaxially distributed with the through hole 5, and the diameter of the mounting hole 6 is larger than the diameter of the through hole 5;

[0044] The cable 4 is inserted into the mounting hole 6 and the through hole 5 in sequence;

[0045] A protective cover 2, which is arranged on the cable 4;

[0046] The locking member 3 is used to lock the protective cover 2 in the mounting hole 6 .

[0047] It should be noted that the through hole 5 and the mounting hole 6 are arranged concentrically so that the cable 4 does not need to be bent when inserted into the mounting hole 6 and the through hole 5, thereby reducing damage to the cable 4. In actual use, the shape, structure, type, size, etc. of the encoder housing 1, the cable 4, the protective cover 2, and the locking member 3 can be determined according to actual conditions and actual needs.

[0048] When using the cable fixing structure of the photoelectric encoder provided by the utility model, first, the protective cover 2 is put on the cable 4, and then the cable 4 equipped with the protective cover 2 is inserted into the mounting hole 6 and the through hole 5 in turn. Finally, the protective cover 2 is locked in the mounting hole 6 by using the locking member 3 to compress the protective cover 2 to achieve the purpose of fixing the cable 4 and sealing, thereby completing the cable 4 fixing operation of the photoelectric encoder.

[0049] The device fixes the cable 4 on the encoder housing 1 by setting concentrically distributed through holes 5 and mounting holes 6, without the need to set up an additional cable fixing head structure, so that after the cable 4 and the encoder housing 1 are connected, the overall size does not exceed the size range of the encoder housing 1, reducing the overall size of the encoder and optimizing the installation space required for the encoder. Moreover, the cable 4 is fixed to the encoder housing 1 by means of the locking member 3 and the protective cover 2, etc., which not only does not damage the cable 4, but also ensures that the cable 4 is installed firmly and reliably, avoiding displacement or falling off of the cable fixing structure due to external forces such as impact and vibration during use, and avoiding the phenomenon that the cable 4 is damaged by external forces such as tension.

[0050] In summary, the cable fixing structure of the photoelectric encoder provided by the utility model is a stable, reliable, highly sealed and compact encoder cable fixing structure.

[0051] In one embodiment, a through hole 5 and a mounting hole 6 are provided on one side of the bottom of the encoder housing 1 to prevent the cable 4 from being inserted into the encoder housing 1 and obstructing the assembly of other components in the encoder.

[0052] In one embodiment, the protective cover 2 includes a flexible structural member to effectively protect the cable 4 .

[0053] In one embodiment, the inner circumference of the protective sleeve 2 is a circular hole structure, the outer circumference of the protective sleeve 2 is a conical surface structure, and the inner circumference of the locking piece 3 is a conical hole structure matching the conical surface structure, so that the locking piece 3 and the protective sleeve 2 are tightly assembled and the fixing effect is good.

[0054] In one embodiment, the outer periphery of the locking member 3 is provided with an external thread, and the mounting hole 6 is provided with an internal thread threadedly connected to the external thread, so as to facilitate the assembly of the locking member 3 and the mounting hole 6, so that the locking member 3 and the mounting hole 6 are threadedly connected, which is convenient for disassembly and assembly of the locking member 3, and then assembly or disassembly of the protective cover 2 and the cable 4.

[0055] In one embodiment, the length of the protective cover 2 is greater than or equal to the sum of the lengths of the through hole 5 and the mounting hole 6, so that the cable 4 is protected by the protective cover 2 when passing through the through hole 5 and the mounting hole 6, reducing direct contact between the cable 4 and the through hole 5 and the mounting hole 6, thereby preventing the cable 4 from being damaged.

[0056] In one embodiment, the locking member 3 includes a locking nut, so that the locking member 3 is easy to manufacture.

[0057] In order to further illustrate the use of the encoder device and the cable fixing structure of the photoelectric encoder provided by the utility model, an example is given below to illustrate them.

[0058] First, install the flexible protective cover 2 on the cable 4, then insert the cable 4 with the protective cover 2 into the mounting hole 6 and the through hole 5 of the encoder housing 1, and the end face of the through hole 5 fits with the end face of the protective cover 2. After that, the locking nut is screwed in through the mounting hole 6 of the encoder housing 1. When the locking nut is tightened, the flexible protective cover 2 is pressed to fix the cable 4 and seal it.

[0059] The cable fixing structure of the device is inside the encoder housing 1 and does not exceed the size range of the encoder housing 1, which reduces the overall size of the encoder and optimizes the installation space required for the encoder; moreover, the fixing structure of the cable 4 is fixed to the encoder housing 1 through a locking nut, which is firmly installed and highly reliable, avoiding the displacement or falling off of the cable 4 caused by external forces such as impact and vibration during use; and the cable 4 is connected to the encoder housing 1 through a flexible protective cover 2 and a locking nut, which improves the sealing of the overall structure and enhances the stability of the structure. In addition, the cable 4 is installed in conjunction with the flexible protective cover 2, which will not damage the cable 4, and the cable 4 is firmly locked by the locking nut, ensuring that the cable 4 will not be damaged by external forces such as tension during use.

[0060] In addition to the above-mentioned cable fixing structure of the photoelectric encoder, the present application also provides an encoder device including the above-mentioned cable fixing structure of the photoelectric encoder.

[0061] In addition, it should be noted that the orientation or positional relationship indicated by "inside and outside" etc. in the present invention is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of simplifying the description and facilitating understanding, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0062] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referenced to each other. Any combination of all embodiments provided by the utility model is within the protection scope of this utility model and will not be described in detail here.

[0063] The encoder device and the cable fixing structure of the photoelectric encoder provided by the utility model are introduced in detail above. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A cable fixing structure for a photoelectric encoder, characterized in that: include: An encoder housing (1) is provided with a through hole (5) and a mounting hole (6) arranged concentrically with the through hole (5), wherein the diameter of the mounting hole (6) is larger than the diameter of the through hole (5); A cable (4) is inserted into the mounting hole (6) and the through hole (5) in sequence; A protective cover (2) which is sleeved on the cable (4); A locking piece (3) is used to lock the protective sleeve (2) in the mounting hole (6); the inner circumference of the protective sleeve (2) is a circular hole structure, the outer circumference of the protective sleeve (2) is a conical surface structure, and the inner circumference of the locking piece (3) is a conical hole structure that matches the conical surface structure.

2. The cable fixing structure of the photoelectric encoder according to claim 1, characterized in that: The through hole (5) and the mounting hole (6) are provided on one side of the bottom of the encoder housing (1).

3. The cable fixing structure of the photoelectric encoder according to claim 1, characterized in that: The protective cover (2) comprises a flexible structural component.

4. The cable fixing structure of the photoelectric encoder according to any one of claims 1 to 3, characterized in that: The outer periphery of the locking member (3) is provided with an external thread, and the mounting hole (6) is provided with an internal thread threadably connected to the external thread.

5. The cable fixing structure of the photoelectric encoder according to any one of claims 1 to 3, characterized in that: The length of the protective sleeve (2) is greater than or equal to the sum of the lengths of the through hole (5) and the mounting hole (6).

6. The cable fixing structure of the photoelectric encoder according to any one of claims 1 to 3, characterized in that: The locking member (3) comprises a locking nut.

7. An encoder device, characterized in that: A cable fixing structure for a photoelectric encoder comprising the structure described in any one of claims 1 to 6.

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