An auxiliary calibration device for a photosensor

Abstract

This utility model discloses an auxiliary calibration device for photoelectric sensors, including a base with supporting feet at the bottom and a conveyor belt at the top. Guide components are located on both sides of the top of the base, with a limit component on one side and a synchronization ring on the other. A drive ring is rotatably connected to one side of the synchronization ring. A drive motor is located at a corresponding position on the bottom of the base. The inner walls of the synchronization ring are fixedly connected to the two sides of the base. A slide rail is formed on the surface of the synchronization ring, and a sliding block is slidably connected within the slide rail. A photoelectric sensor is housed within the sliding block. This utility model uses a rotating drive ring to change the position of an arc-shaped groove, thereby moving a sliding rod within the groove. The movement of the sliding rod synchronously moves the sliding block, allowing for simultaneous changes in the positions of multiple photoelectric sensors. This positional adjustment and calibration facilitates distance sensing for different workpieces.

Description

Technical Field

[0001] This utility model relates to the field of photoelectric sensor technology, and in particular to an auxiliary calibration device for photoelectric sensors. Background Technology

[0002] In the fields of industrial automation and precision measurement, photoelectric sensors are widely used as important detection tools in various aspects such as position detection, speed measurement, and object recognition. The working principle of photoelectric sensors is based on the photoelectric effect, sensing changes in physical quantities of the external environment by measuring changes in light signals. However, due to differences in manufacturing processes, changes in environmental factors, and wear and tear during use, photoelectric sensors require calibration before being put into use to ensure the accuracy and reliability of their measurement results.

[0003] A search revealed existing Chinese patent publication number CN202321591771.3, which includes an arched bracket for a photoelectric sensor. A support is slidably mounted on the inner wall of the arched bracket, a lead screw sleeve is fixedly mounted at the bottom of the bracket, and a photoelectric sensor detection probe is fixedly mounted at the bottom of the lead screw sleeve. An adjustment component includes a lead screw shaft, which is movably screwed into the lead screw sleeve. The top of the lead screw shaft is engaged with a sealed bearing fixed inside the arched bracket of the photoelectric sensor, and a turntable is coaxially fixed at the end of the lead screw shaft. This invention, by incorporating an adjustment component, controls the distance between the photoelectric sensor detection probe and the detection plate via the lead screw shaft. During adjustment, an internal ranging component continuously monitors the distance, ensuring that the distance between the photoelectric sensor detection probe and the detection plate remains within a reasonable range, thus improving detection accuracy.

[0004] In the aforementioned patented technology, the photoelectric sensor detects an object by setting up a photoelectric sensor to detect a preset moving object. When calibration of the photoelectric sensor is required, or when the distance between multiple photoelectric sensors and the detected object needs to be adjusted, the corresponding photoelectric sensor detection voltage is recorded. This method requires operators to calibrate each photoelectric sensor individually, which is not only cumbersome and inefficient, but also makes it difficult to guarantee calibration accuracy. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary calibration device for photoelectric sensors to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary calibration device for photoelectric sensors, comprising: a device base, a supporting foot at the bottom of the device base, a conveyor belt at the top of the device base, guide components on both sides of the top of the device base, a limit component on one side of the guide component, a synchronization ring on one side of the limit component, and a drive ring rotatably connected to one side of the synchronization ring. A drive motor is installed at the bottom of the device base. The inner walls of the synchronization ring are fixedly connected to the two sides of the device base. A slide rail is provided on the surface of the synchronization ring. A sliding block is slidably connected in the slide rail. A photoelectric sensor is installed in the sliding block.

[0007] Preferably, a sliding rod is fixedly connected to one side of the sliding block, the sliding block is adapted to the size of the slide rail, a sliding groove is provided inside the slide rail, and the sliding rod is slidably connected to the sliding groove.

[0008] Preferably, the surface of the drive ring is provided with an arc-shaped groove, and the inner wall of the drive ring is provided with a toothed groove.

[0009] Preferably, four sets of arc-shaped grooves are provided corresponding to the number of sliding blocks. The arc-shaped grooves are arranged in a circular array. The sliding rod extends through the groove into the interior of the arc-shaped groove and is slidably connected to the arc-shaped groove.

[0010] Preferably, the output shaft of the drive motor is fixedly connected to a transmission gear, the size of which is adapted to the size of the tooth groove, and the drive motor is connected to the drive ring through the transmission gear.

[0011] Preferably, a guide wheel is rotatably connected to the inner surface of the guide assembly, and a movable groove is provided at one end of the guide assembly.

[0012] Preferably, the limiting component includes an electric telescopic rod fixedly connected to the top of the device base on one side, a push block fixedly connected to one end of the electric telescopic rod, the push block being movably connected to the device base through the electric telescopic rod, and a protrusion adapted to the movable groove being fixedly provided at one end of the push block.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model features a guide assembly symmetrically arranged on the top of the device base. Guide wheels are rotatably connected to the inner surface of the guide assembly, and three sets of guide wheels are arranged equidistantly. When the workpiece moves to the position of the guide assembly via a conveyor belt, the multiple sets of guide wheels symmetrically and obliquely arranged on both sides guide and fine-tune the workpiece. A limit component is then provided on one side of the guide assembly. The limit component includes an electric telescopic rod fixedly connected to the top of the device base on one side. The electric telescopic rods on both sides drive a push block to further align the workpiece, facilitating the next step of inspection. A protrusion is fixedly provided at one end of the push block, matching the movable groove at one end of the guide assembly. The movable groove guides the electric telescopic rod to drive the push block, improving stability.

[0014] This invention features a sliding block that is sized to match a slide rail. The slide rail has an internal groove, allowing the sliding block to slide within it via a sliding rod. A drive ring and a synchronization ring are rotatably connected. The drive ring has an arc-shaped groove on its surface, with four sets corresponding to the number of sliding blocks. These grooves are arranged in a circular array. The sliding rod extends through the groove and into the arc-shaped groove, slidingly connecting with it. Rotating the drive ring changes the position of the arc-shaped groove, causing the sliding rod within the groove to move. This movement of the sliding rod synchronously moves the sliding block, thus simultaneously changing the positions of multiple photoelectric sensors. A drive motor is fixedly mounted at the bottom of the device base, corresponding to the drive ring. A transmission gear is fixedly connected to the drive motor's output shaft. The inner wall of the drive ring has a toothed groove, the size of which matches the size of the toothed groove. The drive motor drives the transmission gear, which in turn drives the drive ring to rotate through the toothed groove. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the limiting component and guiding component of this utility model; Figure 3 This is a schematic diagram of the drive ring and synchronization ring structure of this utility model; Figure 4 This is a schematic diagram of the drive ring drive structure of this utility model.

[0017] As indicated by the labels in the diagram: 1. Device base; 2. Support foot; 3. Conveyor belt; 4. Guide assembly; 401. Guide wheel; 402. Movable groove; 5. Limiting assembly; 501. Electric telescopic rod; 502. Push block; 503. Protrusion; 6. Synchronization ring; 601. Slide rail; 602. Sliding block; 603. Sliding rod; 604. Photoelectric sensor; 605. Slide groove; 7. Drive ring; 701. Arc groove; 702. Drive tooth groove; 8. Drive motor; 801. Transmission gear. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The preferred embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. Although preferred embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this utility model more thorough and complete, and to fully convey the scope of this utility model to those skilled in the art.

[0019] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0021] In the description of this utility model, it should be understood that the terms "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] It should be understood that although the terms "first," "second," "third," etc., may be used to describe various components in this invention, this information should not be limited to these terms. These terms are only used to distinguish components of the same type from each other. For example, without departing from the scope of this invention, a first component may also be referred to as a second component, and similarly, a second component may also be referred to as a first component. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0025] refer to Figures 1 to 4 An auxiliary calibration device for a photoelectric sensor includes: a device base 1, a support foot 2 at the bottom of the device base 1, a conveyor belt 3 at the top of the device base 1, guide components 4 on both sides of the top of the device base 1, a limit component 5 on one side of the guide component 4, a synchronization ring 6 on one side of the limit component 5, and a drive ring 7 rotatably connected to one side of the synchronization ring 6. A drive motor 8 is fixedly installed at the corresponding position of the drive ring 7 at the bottom of the device base 1. The inner walls of the synchronization ring 6 are fixedly connected to the two sides of the device base 1. A slide rail 601 is opened on the surface of the synchronization ring 6. A sliding block 602 is slidably connected in the slide rail 601. A photoelectric sensor 604 is installed in the sliding block 602.

[0026] Specifically, a sliding rod 603 is fixedly connected to one side of the sliding block 602. The sliding block 602 is adapted to the size of the slide rail 601. A sliding groove 605 is provided inside the slide rail 601. The sliding rod 603 is slidably connected to the sliding groove 605.

[0027] Specifically, the surface of the drive ring 7 is provided with an arc-shaped groove 701, and the inner wall of the drive ring 7 is provided with a toothed groove 702.

[0028] Specifically, four sets of arc-shaped grooves 701 and sliding blocks 602 are provided in corresponding numbers. The arc-shaped grooves 701 are arranged in a circular array. The sliding rod 603 extends through the sliding groove 605 into the interior of the arc-shaped groove 701 and is slidably connected to the arc-shaped groove 701.

[0029] Specifically, the output shaft of the drive motor 8 is fixedly connected to a transmission gear 801, the size of which is adapted to the size of the tooth groove 702, and the drive motor 8 is connected to the drive ring 7 through the transmission gear 801.

[0030] Specifically, a guide wheel 401 is rotatably connected to the inner surface of the guide component 4, and a movable groove 402 is provided at one end of the guide component 4.

[0031] Specifically, the limiting component 5 includes an electric telescopic rod 501 fixedly connected to the top of the device base 1 on one side. A push block 502 is fixedly connected to one end of the electric telescopic rod 501. The push block 502 is movably connected to the device base 1 through the electric telescopic rod 501. A protrusion 503 adapted to the movable groove 402 is fixedly provided at one end of the push block 502.

[0032] In this embodiment, a guide assembly 4 is symmetrically arranged on the top of the device base 1. Guide wheels 401 are rotatably connected to the inner surface of the guide assembly 4. Three sets of guide wheels 401 are arranged at equal intervals. When the workpiece moves to the position of the guide assembly 4 by the conveyor belt 3, the multiple sets of guide wheels 401 arranged symmetrically and obliquely on both sides guide and fine-tune the workpiece. Then, a limit assembly 5 is provided on one side of the guide assembly 4. The limit assembly 5 includes an electric telescopic rod 501 fixedly connected to the top of the device base 1 on one side. The electric telescopic rods 501 on both sides drive the push block 502 to further straighten the workpiece, which is convenient for the next step of inspection.

[0033] It should be noted that a protrusion 503 is fixedly installed at one end of the push block 502, which is adapted to the movable groove 402 at one end of the guide component 4. The movable groove 402 can guide the electric telescopic rod 501 to drive the push block 502 to improve stability.

[0034] As a further limitation of this technical solution, the surface of the synchronization ring 6 is provided with four sets of slide rails 601, and a sliding block 602 is slidably connected in the slide rail 601. A photoelectric sensor 604 is installed in the sliding block 602, and a sliding rod 603 is fixedly connected to one side of the sliding block 602. The sliding block 602 is adapted to the size of the slide rail 601. A groove 605 is provided inside the slide rail 601. The sliding block 602 slides in the slide rail 601 through the sliding rod 603 and the groove 605. The drive ring 7 is rotatably connected to the synchronization ring 6. The surface of the drive ring 7 is provided with an arc-shaped groove 701. The number of arc-shaped grooves 701 corresponds to the number of sliding blocks 602, and four sets are provided. The arc-shaped grooves 701 are arranged in a ring array. The sliding rod 603 extends through the groove 605 to the arc-shaped groove 701. Inside the device base 1, the drive ring 7 is slidably connected to the arc-shaped groove 701. By rotating the drive ring 7, the position of the arc-shaped groove 701 is changed, thereby causing the sliding rod 603 inside the arc-shaped groove 701 to move in the sliding groove 605. When the sliding rod 603 moves, it simultaneously drives the sliding block 602 to move, thus simultaneously changing the position of multiple photoelectric sensors 604. A drive motor 8 is fixedly installed at the corresponding position of the drive ring 7 at the bottom of the device base 1. The output shaft of the drive motor 8 is fixedly connected to the transmission gear 801. The inner wall of the drive ring 7 is provided with a toothed groove 702. The size of the transmission gear 801 is adapted to the size of the toothed groove 702. The drive motor 8 drives the transmission gear 801 to drive the drive ring 7 to rotate through the toothed groove 702.

[0035] Based on the above embodiments, in use, the workpiece is moved to the guide assembly 4 by the conveyor belt 3. Multiple sets of guide wheels 401 arranged symmetrically on both sides guide and fine-tune the workpiece. Then, the electric telescopic rods 501 on both sides of the limiting assembly 5 drive the push block 502 to further align the workpiece, facilitating the next step of inspection. The conveyor belt 3 continues to drive the workpiece into the synchronization ring 6, where multiple photoelectric sensors 604 on the synchronization ring 6 inspect the workpiece. When it is necessary to change the workpiece to be inspected, the drive motor 8 drives the transmission gear 801 to rotate the drive ring 7 through the tooth groove 702. The rotation of the drive ring 7 changes the position of the arc groove 701, thereby causing the sliding rod 603 in the arc groove 701 to move in the slide groove 605. When the sliding rod 603 moves, it simultaneously drives the sliding block 602 to move, thus simultaneously changing the position of multiple photoelectric sensors 604, adjusting and calibrating the position, and facilitating distance sensing for different workpieces to be inspected.

[0036] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.

[0037] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An auxiliary calibration device for a photoelectric sensor, characterized in that, include: The device base (1) is provided with a support foot (2) at the bottom and a conveyor belt (3) at the top. The device base (1) is provided with guide components (4) on both sides of the top of the device base (1). A limit component (5) is provided on one side of the guide component (4). A synchronization ring (6) is provided on one side of the limit component (5). A drive ring (7) is rotatably connected to one side of the synchronization ring (6). A drive motor (8) is provided at the bottom of the device base (1). The inner walls of the synchronization ring (6) are fixedly connected to the two sides of the device base (1). A slide rail (601) is provided on the surface of the synchronization ring (6). A sliding block (602) is slidably connected in the slide rail (601). A photoelectric sensor (604) is provided in the sliding block (602).

2. The auxiliary calibration device for a photoelectric sensor according to claim 1, characterized in that, A sliding rod (603) is fixedly connected to one side of the sliding block (602). The sliding block (602) is adapted to the size of the slide rail (601). A sliding groove (605) is provided inside the slide rail (601). The sliding rod (603) is slidably connected to the sliding groove (605).

3. The auxiliary calibration device for a photoelectric sensor according to claim 2, characterized in that, The drive ring (7) has an arc-shaped groove (701) on its surface and a toothed groove (702) on its inner wall.

4. The auxiliary calibration device for a photoelectric sensor according to claim 3, characterized in that, The number of arc-shaped grooves (701) and sliding blocks (602) are arranged in four sets. The arc-shaped grooves (701) are arranged in a ring array. The sliding rod (603) extends through the sliding groove (605) into the arc-shaped groove (701) and is slidably connected with the arc-shaped groove (701).

5. The auxiliary calibration device for a photoelectric sensor according to claim 4, characterized in that, The output shaft of the drive motor (8) is fixedly connected to a transmission gear (801). The size of the transmission gear (801) is adapted to the size of the tooth groove (702). The drive motor (8) is connected to the drive ring (7) through the transmission gear (801).

6. The auxiliary calibration device for a photoelectric sensor according to claim 5, characterized in that, The inner surface of the guide assembly (4) is rotatably connected to a guide wheel (401), and one end of the guide assembly (4) is provided with a movable groove (402).

7. The auxiliary calibration device for a photoelectric sensor according to claim 6, characterized in that, The limiting component (5) includes an electric telescopic rod (501) fixedly connected to the top of the device base (1) on one side. A push block (502) is fixedly connected to one end of the electric telescopic rod (501). The push block (502) is movably connected to the device base (1) through the electric telescopic rod (501). A protrusion (503) adapted to the movable groove (402) is fixedly provided at one end of the push block (502).

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