Device for automatically detecting waveform of coded disc

Abstract

The utility model provides a device for automatically detecting the waveform of a coded disc, which comprises a first mechanical arm clamp and a second mechanical arm clamp which are used for clamping and limiting a coded disc finished product to be detected, and a light sensing detector, the first mechanical arm clamp and the second mechanical arm clamp are oppositely arranged at the two ends of the coded disc finished product in the diameter direction and connected with respective external driving devices. The rotating shaft of the coded disc finished product is matched with the limiting groove of the light induction detector, the detection shaft penetrates through the rotating shaft, the coded disc finished product rotates along with the detection shaft, electric signals are generated by detecting light passing through holes or marks on the disc face, and therefore qualified products and unqualified products are sorted. According to the utility model, waste caused by unqualified products after subsequent assembly of products due to poor waveform of the code disc is avoided; and meanwhile, full-automatic product waveform detection and qualified product and unqualified product split charging are adopted, so that the working efficiency is improved, and the yield of products is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of encoders, in particular to a device for automatically detecting code disk waveforms. Background Art

[0002] The pulse encoder is also called the encoder disc or encoder wheel. The encoder disc is an important component of the encoder. It is a position sensor commonly used in rotary motion systems, that is, a rotary digital measuring element.

[0003] It is usually installed on the shaft to be tested and rotates with it. It can directly convert the angular displacement of the shaft to be tested into a digital signal (high-speed pulse signal). By converting the angular displacement into a periodic electrical signal, and then converting this electrical signal into a counting pulse, the number of pulses is used to represent the size of the displacement, which is used for speed control or position control. The sensor that detects the waveform of the code disk is usually a photoelectric sensor, which generates an electrical signal by detecting the light passing through the hole or mark on the code disk. Magnetic sensors or Hall effect sensors can also be used to detect the magnetic mark on the code disk. By detecting the waveform of the code disk, it can be determined whether the product is qualified.

[0004] In the prior art, the devices for detecting the waveform of the code disk mostly use stepper motors as transmission elements, and the device structure is complex, and the synchronization and stability are poor. Therefore, it is necessary to provide a detection device to solve the above problems. Utility Model Content

[0005] According to the technical problems raised above, a device for automatically detecting the waveform of a code disk is provided. The utility model mainly adopts the cooperation of a mechanical arm fixture and a light-sensing detector to detect the code disk before the encoder is assembled into a finished product, thereby avoiding the waste caused by defective products produced after subsequent assembly into products due to poor waveform of the code disk; at the same time, the waveform of the product is detected and the qualified and unqualified products are packaged in a fully automated manner, thereby improving the operating efficiency and increasing the product yield.

[0006] The technical means adopted by the utility model are as follows:

[0007] A device for automatically detecting a code disk waveform, comprising a first mechanical arm fixture and a second mechanical arm fixture and a light-sensing detector for clamping a code disk product to be tested, wherein the first mechanical arm fixture and the second mechanical arm fixture are relatively arranged at two ends of the diameter direction of the code disk product and are respectively connected to respective external drive devices;

[0008] The first mechanical arm clamp comprises a first connecting end, a first clamping end connected to the first connecting end, a first clamping claw is connected to the end of the first clamping end, and the first clamping claw has a holding and accommodating space for accommodating the disk surface of the finished code disk; the structure of the second mechanical arm clamp is the same as that of the first mechanical arm clamp, the second mechanical arm clamp comprises a second connecting end, a second clamping end connected to the second connecting end, a second clamping claw is connected to the end of the second clamping end, and the second clamping claw has a holding and accommodating space for accommodating the disk surface of the finished code disk;

[0009] The rotating axis of the finished code disc matches the limiting groove of the light-sensing detector, and the detection axis passes through the rotating axis. The finished code disc rotates with the detection axis, and an electrical signal is generated by detecting the light passing through the holes or marks on the disc surface, thereby sorting qualified products from unqualified products.

[0010] Furthermore, the light-sensing detector includes a detector body with a limiting groove on the upper end surface, a detection end and a detection light source for detection arranged on the upper end surface of the detector body, and the orthographic projection of the detector body and the orthographic projection of the finished code disc are concentric circles.

[0011] Furthermore, the width of the detection end is the same as the code disc scale on the finished code disc.

[0012] Furthermore, the finished code disc comprises a disc surface, a rotating shaft with a through hole arranged at the center of the disc surface and penetrating the disc surface, the rotating shaft matches the detection shaft and rotates together with the detection shaft during detection.

[0013] Furthermore, the first robotic arm clamp and the second robotic arm clamp are used to clamp the finished code disc onto a light-sensing detector. During detection, the finished code disc is released, and the accommodating space between the clamping jaws is larger than the thickness of the code disc surface, thereby protecting the finished code disc.

[0014] Furthermore, the device is also provided with boxes for qualified products and boxes for unqualified products. After the inspection is completed, the finished code discs are clamped by a robotic arm fixture for sorting.

[0015] Compared with the prior art, the utility model clamps and limits the finished code disc by relatively arranged mechanical arm clamps, so that the finished code disc is more stable and more accurate when detected on the light-sensing detector, thereby improving the working efficiency and increasing the yield rate of the product. It has the advantages of simple structure and strong operability.

[0016] Based on the above reasons, the utility model can be widely promoted in the technical field of encoder code disc finished product detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the finished code disc used for detection in the utility model.

[0019] Figure 2 It is a top view of the finished code disc used for detection in the utility model.

[0020] Figure 3 It is a schematic diagram of a mechanical arm clamp used for clamping a finished code disc in the utility model.

[0021] Figure 4 The utility model is a schematic diagram of the structure of the automatic detection device of the code disk waveform.

[0022] Figure 5 The figure is a schematic diagram of the working process of the automatic detection device of the code disk waveform of the utility model.

[0023] In the figure: 1. Finished code disk; 11. Disk surface; 12. Rotating shaft; 13. Through hole; 2. First robot arm fixture; 21. First connecting end; 22. First clamping end; 23. First clamping jaw; 3. Second robot arm fixture; 31. Second connecting end; 32. Second clamping end; 33. Second clamping jaw; 4. Detection axis; 5. Light-sensing detector; 51. Detector body; 52. Detection end; 53. Limiting groove; 6. Detection light source; 7. Qualified product box; 8. Unqualified product box. DETAILED DESCRIPTION

[0024] 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. In the description of the embodiments of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connection" and "installation" should be understood in a broad sense. For example, "connection" can be detachably connected or non-detachably connected; it can be directly connected or indirectly connected through an intermediate medium. In addition, "connection" can be directly connected or indirectly connected through an intermediate medium. Among them, "fixed" means that the relative position relationship after connection remains unchanged. The orientation terms mentioned in the embodiments of the utility model, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the drawings. Therefore, the orientation terms used are for better and clearer explanation and understanding of the embodiments of the utility model, 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 embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0025] The utility model provides a device for automatically detecting the waveform of a code disk, such as Figure 4 As shown, it includes a first robotic arm clamp 2 and a second robotic arm clamp 3 and a light-sensing detector 5 for clamping the code disc finished product 1 to be tested. The first robotic arm clamp 2 and the second robotic arm clamp 3 are relatively arranged at the two ends of the diameter direction of the code disc finished product 1 and are respectively connected to their own external driving devices.

[0026] like Figure 1 and Figure 2 As shown, the finished code disc 1 includes a disc surface 11, a rotating shaft 12 with a through hole 13 arranged at the center of the disc surface 11 and penetrating the disc surface 11, and the rotating shaft 12 matches the detection shaft 4 and rotates with the detection shaft 4 during detection.

[0027] like Figure 3As shown, the first robot arm clamp 2 includes a first connecting end 21, a first clamping end 22 connected to the first connecting end 21, the end of the first clamping end 22 is connected to a first clamping claw 23, and the first clamping claw 23 has an accommodating clamping space for accommodating the disk surface 11 of the finished code disk 1; the structure of the second robot arm clamp 3 is the same as that of the first robot arm clamp 2, the second robot arm clamp 3 includes a second connecting end 31, a second clamping end 32 connected to the second connecting end 31, the end of the second clamping end 32 is connected to a second clamping claw 33, and the second clamping claw 33 has an accommodating clamping space for accommodating the disk surface 11 of the finished code disk 1.

[0028] like Figure 5 As shown, the rotating shaft 12 of the finished code disc 1 matches the limiting groove 53 of the light-sensing detector 5, and the detection shaft 4 passes through the rotating shaft 12. The finished code disc 1 rotates together with the detection shaft 4, and generates an electrical signal by detecting the light passing through the holes or marks on the disc surface 11, thereby sorting qualified products and unqualified products.

[0029] The optical sensor detector 5 includes a detector body 51 with a limit groove 53 on the upper end surface, a detection end 52 for detection arranged on the upper end surface of the detector body 51, and a detection light source 6. The orthographic projection of the detector body 51 is a concentric circle with the orthographic projection of the code disk product 1. The width of the detection end 52 is the same as the code disk scale on the code disk product 1.

[0030] The first robotic arm clamp 2 and the second robotic arm clamp 3 are used to clamp the finished code disc 1 onto the light-sensing detector 5. During detection, the finished code disc 1 is released, and the accommodating space between the clamping jaws is larger than the thickness of the code disc surface 11, thereby protecting the finished code disc 1.

[0031] The device is also provided with a qualified product box 7 and a failed product box 8. After the inspection is completed, the finished code disc 1 is clamped by a mechanical arm fixture for sorting.

[0032] During the inspection, the finished code disc 1 is clamped onto the photosensitive detector 5 by the jaws of the first mechanical arm clamp 2 and the second mechanical arm clamp 3, and the detection shaft 4 passes through the rotating shaft 12, and the lower end of the rotating shaft 12 matches the limiting groove 53 of the photosensitive detector 5. The jaws of the first mechanical arm clamp 2 and the second mechanical arm clamp 3 loosen the finished code disc 1, and hold it around the finished code disc 1, and limit the balance; the finished code disc 1 rotates with the detection shaft 4, and generates an electrical signal by detecting the light passing through the holes or marks on the disc surface 11, so as to sort qualified products and unqualified products. After the inspection is completed, the finished code disc 1 is clamped by the jaws of the first mechanical arm clamp 2 and the second mechanical arm clamp 3, and placed in the corresponding qualified product box 7 or unqualified product box 8 according to the inspection results.

[0033] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for automatically detecting a code disk waveform, characterized in that: It comprises a first mechanical arm fixture and a second mechanical arm fixture and a light-sensing detector for clamping a finished code disk to be tested, wherein the first mechanical arm fixture and the second mechanical arm fixture are relatively arranged at two ends of the diameter direction of the finished code disk and are respectively connected to respective external drive devices; The first mechanical arm clamp comprises a first connecting end, a first clamping end connected to the first connecting end, a first clamping claw is connected to the end of the first clamping end, and the first clamping claw has a holding and accommodating space for accommodating the disk surface of the finished code disk; the structure of the second mechanical arm clamp is the same as that of the first mechanical arm clamp, the second mechanical arm clamp comprises a second connecting end, a second clamping end connected to the second connecting end, a second clamping claw is connected to the end of the second clamping end, and the second clamping claw has a holding and accommodating space for accommodating the disk surface of the finished code disk; The rotating axis of the finished code disc matches the limiting groove of the light-sensing detector, and the detection axis passes through the rotating axis. The finished code disc rotates with the detection axis, and an electrical signal is generated by detecting the light passing through the holes or marks on the disc surface, thereby sorting qualified products from unqualified products.

2. The device for automatically detecting code disk waveform according to claim 1, characterized in that: The light-sensing detector includes a detector body with a limiting groove on the upper end surface, a detection end and a detection light source for detection arranged on the upper end surface of the detector body, and the orthographic projection of the detector body and the orthographic projection of the finished code disc are concentric circles.

3. The device for automatically detecting code disk waveform according to claim 2, characterized in that: The width of the detection end is the same as the code disc scale on the finished code disc.

4. The device for automatically detecting code disk waveform according to claim 1, characterized in that: The finished code disc comprises a disc surface, a rotating shaft with a through hole arranged at the center of the disc surface and penetrating the disc surface, the rotating shaft matches the detection shaft and rotates together with the detection shaft during detection.

5. The device for automatically detecting code disk waveform according to claim 1, characterized in that: The first robotic arm clamp and the second robotic arm clamp are used to clamp the finished code disc onto the light-sensing detector. During detection, the finished code disc is released, and the accommodating space between the clamping jaws is larger than the thickness of the code disc surface, thereby protecting the finished code disc.

6. The device for automatically detecting code disk waveform according to claim 1, characterized in that: The device is also provided with boxes for qualified products and boxes for unqualified products. After the inspection is completed, the finished code discs are clamped by a mechanical arm fixture for sorting.

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