Optoelectronic spot inspection device for working

Abstract

The invention discloses an opening photoelectric spot inspection device, which comprises a detection head, an observation head and a connecting pipe, the detection head and the observation head are respectively fixed at two ends of the connecting pipe, the detection head comprises a detection shell, a light-emitting element and a photosensitive element, the detection shell is made of a shading material, a detection groove is formed in the detection shell, and the light-emitting element is arranged in the detection groove. The light-emitting element is arranged at the groove bottom of the detection groove, the photosensitive element is installed at the position, close to the light-emitting element, of the groove bottom of the detection groove, an optical fiber is arranged in the connecting pipe, and the photosensitive element is connected with the optical fiber so that detection light reflected by the photoelectric head can be transmitted to the observation head through the optical fiber. According to the photoelectric spot inspection device for working, through the arrangement of the detection head, the observation head and the connecting pipe, whether the photoelectric head is polluted by foreign matters or not can be simply and effectively detected.

Description

Technical Field

[0001] The invention relates to a spot inspection device, and more particularly to a photoelectric spot inspection device for opening a shift. Background Art

[0002] The photoelectric inspection at the beginning of a shift is an inspection process for photoelectric equipment before it starts working. Its purpose is to ensure the normal operation of the equipment and production safety. The more common photoelectric equipment failure at present is that foreign matter covers the photosensitive part of the photoelectric equipment, thereby blocking light from entering the photoelectric equipment, which in turn causes the photoelectric equipment to be unable to work effectively. The current existing technology for checking whether the photoelectric equipment is covered by foreign matter and affecting its work mainly involves observing the photoelectric head with the naked eye, so as to determine with the naked eye whether the photoelectric head is covered by foreign matter. However, the method of observation with the naked eye, on the one hand, the location distribution of the photoelectric equipment on the machine is diverse, making it difficult to observe directly. On the other hand, it is easier for the naked eye to fail to observe under the influence of ambient light. Therefore, the current existing technology for detecting whether the photoelectric equipment is contaminated by foreign matter has the problems of low efficiency and low accuracy. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a photoelectric spot inspection device that can effectively improve the efficiency and accuracy of detecting whether a photoelectric device is contaminated by foreign matter.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a photoelectric inspection device for opening a shift, comprising a detection head, an observation head and a connecting tube, wherein the detection head and the observation head are respectively fixed on the two ends of the connecting tube, the detection head comprises a detection shell, a light-emitting element and a photosensitive element, the detection shell is made of a light-shielding material, a detection slot is formed in the detection shell, the light-emitting element is arranged on the bottom of the detection slot, and is used to emit detection light toward the photoelectric head, the photosensitive element is installed at a position close to the light-emitting element at the bottom of the detection slot, and is used to receive the detection light reflected after passing through the photoelectric head, an optical fiber is arranged in the connecting tube, and the photosensitive element is connected to the optical fiber to transmit the detection light reflected after passing through the photoelectric head to the observation head through the optical fiber.

[0005] As a further improvement of the present invention, an imaging pattern is provided in the light-emitting element, and the detection light emitted by the light-emitting element is pattern projection light. An electronic photosensitive element and a wireless communication device are provided in the observation head. The electronic photosensitive element is connected to the optical fiber in the connecting tube to receive the detection light transmitted by the optical fiber and reflected after passing through the photoelectric head, and convert it into electrical signal image data and send it to the wireless communication device. The invalid communication device is communicatively connected with an external image recognition server to transmit image data to the external image recognition server. The external image recognition server recognizes the image of the image data and then determines whether there is foreign matter contamination on the photoelectric head.

[0006] As a further improvement of the present invention, the specific method by which the external image recognition server determines whether the photoelectric head is contaminated by foreign matter is as follows: after receiving the image data, the image corresponding to the image data is parsed in the server, and compared with the preset pattern stored internally, the area different from the preset pattern is identified, and the recognition loss is calculated at the same time. If the calculated recognition loss is within the preset normal range, it is determined that the photoelectric head is not contaminated by foreign matter. If the recognition loss exceeds the preset normal range, it is determined that the photoelectric head is contaminated by foreign matter.

[0007] As a further improvement of the present invention, a rubber sheet is fixed to the notch of the detection slot, and a plurality of cutting edges distributed in a circumference are formed on the rubber sheet to form a plurality of triangular sheet structures inside the rubber sheet.

[0008] As a further improvement of the present invention, a clamping rod is slidably provided on the groove wall of the detection groove, one end of the clamping rod penetrates the groove wall of the detection groove to the outside, and a chuck is coaxially fixed on the other end. A reset spring is coaxially sleeved on the clamping rod, and the two ends of the reset spring are respectively fixed to the end face of the chuck and the groove wall of the detection groove.

[0009] As a further improvement of the present invention, a conductive sheet is fixed on the side wall of the clamping rod, an induction wire is passed through the detection housing, the induction wire is connected to the observation head, a sliding channel is opened on the groove wall of the detection groove, the clamping rod is slidably arranged in the sliding channel, the end of the induction wire extends to the sliding channel, a contact sheet is fixed on the inner side wall of the sliding channel, the contact sheet is connected to the induction wire, when the clamping rod slides until the conductive sheet and the contact sheet are in contact, the induction wire is connected, and a positioning signal is sent to the observation head.

[0010] As a further improvement of the present invention, it also includes a viewing head, wherein the viewing head is threadedly connected to the end of the connecting pipe, and the viewing head is threadedly connected to the end of the connecting pipe.

[0011] The beneficial effect of the present invention is that, by setting up a detection slot in the detection shell, it is possible to effectively cover the photoelectric head during the detection process to avoid the influence of ambient light, and by adopting the setting of light-emitting elements and photosensitive elements, it is possible to effectively realize the detection of whether the surface of the photoelectric head is contaminated by foreign matter in a mirror-like manner when the photoelectric head is not started, and by using a connecting tube composed of optical fibers as a connecting component, it is possible to effectively achieve inconsistent angles between the detection head and the observation head, thereby reducing the influence of the installation position of the photoelectric head on the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the photoelectric spot inspection device for starting a shift of the present invention;

[0013] Figure 2 for Figure 1 Schematic diagram of the internal structure of the detection head;

[0014] Figure 3 for Figure 1 Schematic diagram of the end face structure of the detection head;

[0015] Figure 4 for Figure 2 Enlarged view of part A in the middle. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the embodiments given in the accompanying drawings.

[0017] Reference Figure 1As shown, a start-of-shift photoelectric inspection device of this embodiment is mainly used to detect whether the surface of the photoelectric head of the equipment is contaminated before the start of the shift, including a detection head 1, an observation head 2 and a connecting tube 3, wherein the detection head 1 and the observation head 2 are respectively fixed on the two ends of the connecting tube 3, and the detection head 1 includes a detection shell 11, a light-emitting element 12 and a photosensitive element 13, wherein the detection shell 11 is made of a light-shielding material, and a detection groove is formed in the detection shell 11, wherein the light-emitting element 12 is arranged on the bottom of the detection groove, and is used to emit detection light toward the photoelectric head, and the photosensitive element 13 is installed at a position near the light-emitting element 12 at the bottom of the detection groove, and is used to receive detection light reflected after passing through the photoelectric head. Photometry, an optical fiber is provided in the connecting tube 3, and the photosensitive element 13 is connected to the optical fiber to transmit the detection light reflected after passing through the photoelectric head to the observation head 2 through the optical fiber. During the detection process, the detection personnel only need to put the detection head 1 on the photoelectric head to be detected, and then they can use the light-emitting element 12 and the photosensitive element 13 therein to realize the detection of surface contamination of the photoelectric head without the influence of ambient light. The setting of the optical fiber in the connecting tube 3 can realize that the angles between the detection head 1 and the observation head 2 do not need to be consistent, and will not affect the transmission of the sensing light. In addition, the volume of the detection head 1 can be made as small as possible, so that it can be better inserted into the mechanical equipment and put on the photoelectric head.

[0018] Based on the above-mentioned structure of the detection head 1, observation head 2 and connecting tube 3, in this embodiment, the observation head 2 is used as an image acquisition device, and then the external server is used to calculate to realize the automatic judgment of foreign matter contamination on the photoelectric head. Specifically, the reflected sensing light is first transmitted to the external image recognition server through the electronic photosensitive element and the wireless communication device, and then the external image recognition server parses the image corresponding to the image data in the server after receiving the image data, and compares it with the preset pattern stored internally, identifies the area different from the preset pattern, and calculates the recognition loss at the same time. If the calculated recognition loss is within the preset normal range, it is judged that the photoelectric head is not contaminated by foreign matter. If the recognition loss exceeds the preset normal range, it is judged that the photoelectric head is contaminated by foreign matter.

[0019] Furthermore, in order to enhance the light-shielding performance of the detection head 1, in this embodiment, a rubber sheet 4 is provided at the notch of the detection slot to achieve light-shielding, and a plurality of circularly distributed cut edges are provided on the rubber sheet 4 to form a plurality of triangular sheet structures inside the rubber sheet 4, which can effectively facilitate the insertion of the photoelectric head.

[0020] In the process of actually using the detection head 1, people often cannot judge whether the position of the photoelectric head inserted into the detection head 1 is appropriate. Therefore, in this embodiment, a combined structure of the clamping rod 5 and the clamping plate 6 is used to realize the soft positioning of the photoelectric head, so that the position of the photoelectric head is more appropriate and reliable. Furthermore, in order to understand whether the position of the photoelectric head has reached a suitable detection position, in this embodiment, a conductive sheet 51 is fixed on the side wall of the clamping rod 5, and a sensing wire 111 is passed through the detection shell 11, and the sensing wire 111 is connected to the observation head 2. A sliding channel is opened on the groove wall of the detection groove, and the clamping rod 5 can be slidably arranged in the sliding channel. The end of the sensing wire 111 extends to the sliding channel, and a contact sheet 8 is fixed on the inner wall of the sliding channel. The contact sheet 8 is connected to the sensing wire 111. When the clamping rod 5 slides to the conductive sheet 51 and the contact sheet 8 are in contact, as shown Figure 4 As shown, the clamping rod 5 is squeezed and pushed by the photoelectric head to slide to the left, so that the conductive sheet 51 contacts the contact sheet 8. After the detection is completed, since the photoelectric head is pulled out, the clamping rod 5 slides to the right and resets under the action of the reset spring, so that the conductive sheet 51 is separated from the contact sheet 8, and the sensing wire 111 is connected to send a position signal to the observation head 2. The detection position can be understood by using the sensing wire 111. In this embodiment, an LED light is set on the side wall of the connecting tube 3 to indicate whether there is a position signal. It is simple and clear. In addition, a flange is formed on the conductive sheet 51 in this embodiment to utilize the elasticity of the conductive sheet 51 material itself to achieve the effect of maintaining contact.

[0021] Since image recognition may also have certain misidentification situations, this embodiment also provides a viewing head 7 that can be observed by the naked eye to implement further manual identification of the photoelectric head that may be misdetected. On the one hand, it can optimize the algorithm in the server, and on the other hand, it can ensure the reliability of the final detection result.

[0022] In summary, in this embodiment, by configuring the detection head 1, the observation head 2 and the connecting tube 3, it is possible to simply and effectively implement light shielding detection for foreign matter contamination of the photoelectric head.

[0023] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A photoelectric spot inspection device for opening a shift, characterized in that: The invention comprises a detection head (1), an observation head (2) and a connecting tube (3), wherein the detection head (1) and the observation head (2) are respectively fixed on two ends of the connecting tube (3), the detection head (1) comprises a detection housing (11), a light emitting element (12) and a photosensitive element (13), the detection housing (11) is made of a light shielding material, a detection slot is formed in the detection housing (11), the light emitting element (12) is arranged on the bottom of the detection slot and is used to emit detection light toward the photoelectric head, the photosensitive element (13) is installed at a position close to the light emitting element (12) on the bottom of the detection slot and is used to receive the detection light reflected by the photoelectric head, an optical fiber is arranged in the connecting tube (3), and the photosensitive element (13) is connected to the optical fiber so as to transmit the detection light reflected by the photoelectric head to the observation head (2) through the optical fiber.

2. The photoelectric spot inspection device for starting a shift according to claim 1 is characterized in that: The light-emitting element (12) is provided with an imaging pattern, and the detection light emitted by the light-emitting element (12) is pattern projection light. The observation head (2) is provided with an electronic photosensitive element and a wireless communication device. The electronic photosensitive element is connected to the optical fiber in the connecting tube (3) to receive the detection light transmitted by the optical fiber and reflected after passing through the photoelectric head, and convert it into electrical signal image data and send it to the wireless communication device. The invalid communication device is connected to the external image recognition server to transmit the image data to the external image recognition server. The external image recognition server recognizes the image of the image data and then determines whether there is foreign matter contamination on the photoelectric head.

3. The photoelectric inspection device for starting a shift according to claim 2 is characterized in that: The specific way in which the external image recognition server determines whether the photoelectric head is contaminated by foreign matter is as follows: after receiving the image data, the server parses the image corresponding to the image data, compares it with the preset pattern stored internally, identifies the area that is different from the preset pattern, and calculates the recognition loss at the same time. If the calculated recognition loss is within the preset normal range, it is determined that the photoelectric head is not contaminated by foreign matter. If the recognition loss exceeds the preset normal range, it is determined that the photoelectric head is contaminated by foreign matter.

4. The photoelectric inspection device for starting a shift according to claim 3 is characterized in that: A rubber sheet (4) is fixed to the notch of the detection slot, and the rubber sheet (4) is provided with a plurality of cutting edges distributed in a circumference, so as to form a plurality of triangular sheet structures inside the rubber sheet (4).

5. The photoelectric spot inspection device for starting a shift according to claim 4 is characterized in that: A clamping rod (5) is slidably provided on the groove wall of the detection groove, one end of the clamping rod (5) penetrates the groove wall of the detection groove to the outside, and a clamping plate (6) is coaxially fixed on the other end. A reset spring is coaxially sleeved on the clamping rod (5), and the two ends of the reset spring are respectively fixed to the end surface of the clamping plate (6) and the groove wall of the detection groove.

6. The photoelectric spot inspection device for starting a shift according to claim 5, characterized in that: A conductive sheet (51) is fixed on the side wall of the clamp rod (5), a sensing wire (111) is passed through the detection housing (11), and the sensing wire (111) is connected to the observation head (2). A sliding channel is opened on the groove wall of the detection groove, and the clamp rod (5) is slidably arranged in the sliding channel. The end of the sensing wire (111) extends to the sliding channel. A contact sheet (8) is fixed on the inner wall of the sliding channel, and the contact sheet (8) is connected to the sensing wire (111). When the clamp rod (5) slides to the conductive sheet (51) and contacts the contact sheet (8), the sensing wire (111) is connected and sends a positioning signal to the observation head (2).

7. The photoelectric spot inspection device for starting a shift according to claim 6 is characterized in that: It also comprises a viewing head (7), wherein the viewing head (2) is threadedly connected to the end of the connecting pipe (3), and the viewing head (7) is threadedly connected to the end of the connecting pipe (3).

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