Groove type photoelectric sensor with collision monitoring function

Abstract

The utility model relates to the technical field of photoelectric sensors, in particular to a groove type photoelectric sensor with a collision monitoring function, which comprises a shell, and a circuit board is arranged in an inner cavity of the shell. An accelerometer sensor used for monitoring the motion state of the linear module in real time, a microprocessor used for receiving signals of the accelerometer sensor and processing and analyzing the signals and an alarm used for sending out alarm signals are integrated on the circuit board, and a pair of transmitting and receiving diodes used for detection is arranged on the circuit board. According to the utility model, the accelerometer sensor, the microprocessor and the alarm are integrated in the groove-type photoelectric sensor, so that the microprocessor can process and analyze monitoring signals of the accelerometer sensor, and when the analyzed signals reach a threshold value, the microprocessor can permanently store acceleration values and give an alarm through the alarm; the problem that early-stage light damage of the linear module is not easy to find is avoided, it can be guaranteed that maintenance personnel conduct maintenance in time through alarm information, and the service life of the linear module is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of photoelectric sensor technology, specifically to a slotted photoelectric sensor with collision monitoring. Background Technology

[0002] In the field of industrial automation, electrically driven linear motion mechanisms are widely used in manufacturing, with linear modules accounting for a large proportion, effectively promoting efficient and high-quality production. However, during the commissioning and operation phases of linear modules, human error, control system malfunctions, and other factors often cause the slider to collide with the body limit block or the slider to bear a load exceeding its rated weight. This not only reduces the service life of the linear module but may even cause it to be damaged.

[0003] Furthermore, traditional methods for detecting whether the slider of a linear module has collided with the main body limit block rely primarily on the imprint inspection method, which determines whether a one-time injury has occurred. However, this detection method is inefficient, highly susceptible to subjective factors, resulting in inaccurate inspection results, and it also fails to detect potential safety hazards in the linear module in advance.

[0004] Meanwhile, it is understood that existing slotted photoelectric sensors on linear modules only have module reset positioning and out-of-range detection functions. Therefore, there is currently a lack of devices on the market capable of real-time fault diagnosis for linear modules. This means that minor damage occurring early in the operation of linear modules is difficult to detect in time, and it is only when the module suffers rapid and irreparable serious damage that affects the normal operation of the entire machine that it is discovered by maintenance personnel, resulting in significant economic losses for enterprises. Utility Model Content

[0005] This invention provides a slotted photoelectric sensor with collision monitoring to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A slotted photoelectric sensor with collision monitoring includes a housing, the inner cavity of which is provided with a circuit board. The circuit board integrates an accelerometer sensor for real-time monitoring of the motion state of a linear module, a microprocessor for receiving and analyzing the accelerometer sensor signal, and an alarm for issuing an alarm signal. A pair of transmitting and receiving diodes for detection are provided on the circuit board, and a power supply line for power supply is electrically connected to the circuit board.

[0008] Preferably, the microprocessor includes a threshold module for setting a threshold, a judgment module for judging the accelerometer sensor signal, and a storage module for storing the accelerometer sensor signal data.

[0009] Preferably, the alarm is an indicator light, and at least one indicator light is provided.

[0010] Preferably, the housing has at least one warning port, and one warning port corresponds to one alarm.

[0011] Preferably, the housing includes a front outer shell and a rear cover, the rear cover being connected to the front outer shell, and the circuit board being disposed between the front outer shell and the rear cover.

[0012] Preferably, the front housing is provided with two cavity protrusions, and the two cavity protrusions are arranged opposite to each other.

[0013] Preferably, the transmitting and receiving diodes include transmitting diodes and receiving diodes that emit towards each other, and the transmitting diodes and receiving diodes are respectively disposed in corresponding cavity bumps.

[0014] Preferably, the front housing has two mounting holes.

[0015] Preferably, the housing is made of metal or plastic.

[0016] Preferably, the circuit board also integrates a slotted photoelectric controller and a slotted photoelectric indicator.

[0017] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0018] In this invention, an accelerometer sensor, a microprocessor, and an alarm are integrated into a slotted photoelectric sensor. This allows the accelerometer sensor to monitor the instantaneous vibration acceleration of the linear module during a collision in real time and output an electrical signal for the microprocessor to process and analyze. When the analyzed signal reaches a threshold, the microprocessor can permanently store the acceleration value and simultaneously trigger an alarm. This avoids the problem of early minor damage to the linear module being difficult to detect, and ensures that maintenance personnel can perform timely maintenance based on alarm information. This greatly extends the service life and stability of the linear module and reduces certain economic losses. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall exploded structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the mounting hole structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the threshold module, judgment module and storage module of this utility model.

[0022] Figure 4 The first-view schematic diagram shows the six types of housings of this utility model: F, K, L, R, T, and Y.

[0023] Figure 5 This is a second-view schematic diagram showing the six types of housings of this utility model: F, K, L, R, T, and Y.

[0024] In the diagram: 1. Housing; 2. Circuit board; 3. Accelerometer sensor; 4. Microprocessor; 5. Alarm; 6. Transmitter / receiver diode; 7. Power cord; 8. Threshold module; 9. Judgment module; 10. Storage module; 11. Warning port; 12. Front cover; 13. Rear cover; 14. Mounting hole. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. Example

[0028] like Figure 1-3 As shown, this utility model provides a slotted photoelectric sensor with collision monitoring, including a housing 1. The inner cavity of the housing 1 is provided with a circuit board 2. The circuit board 2 integrates an accelerometer sensor 3 for real-time monitoring of the slider motion state in a linear module, a microprocessor 4 for receiving and processing the signal from the accelerometer sensor 3, and an alarm 5 for issuing an alarm signal. The circuit board 2 is also provided with a pair of transmitting and receiving diodes 6 for detection. The circuit board 2 is electrically connected to a power supply line 7 for power supply. The circuit board 2 also integrates a slotted photoelectric controller and a slotted photoelectric indicator light to meet the normal use of the slotted photoelectric sensor.

[0029] Furthermore, the accelerometer sensor 3 can output analog data electrical signals in real time, and the accelerometer sensor 3 is also a vibration sensor.

[0030] The microprocessor 4 is responsible for receiving all the electrical signals output by the accelerometer sensor 3, processing and analyzing the signals, and outputting the results after the conditions are met.

[0031] The microprocessor 4 reads data signals in real time through the chip and amplifies the data signals for reading (conventional technology and conventional operation in this field).

[0032] The microprocessor 4 includes a threshold module 8 for setting thresholds, a judgment module 9 for judging the signals of the accelerometer sensor 3, and a storage module 10 for storing the signal data of the accelerometer sensor 3. Specifically, the judgment module 9 reads the electrical transmission signal in real time and judges the read data signal based on the judgment logic and threshold. If the threshold is not reached, the acceleration value is not output in real time; otherwise, if the threshold is reached, the storage module 10 permanently stores the acceleration value and starts an alarm.

[0033] In the first implementation, the microprocessor 4 can be configured to: issue a warning when the warning threshold (low threshold) is reached, and continue reading data after the warning; and issue an alarm when the alarm threshold (high threshold) is reached; wherein the warning and alarm thresholds are set differently (dual threshold concept).

[0034] In the second implementation, the microprocessor 4 can be configured to: set an alarm threshold, continue to acquire new data when the threshold is reached, and then continue running; read and permanently save any acceleration values ​​that exceed the threshold, and record the number of times the threshold is exceeded; the more times there are collisions, the more serious the problem with the operating environment.

[0035] As a third implementation, the microprocessor 4 can be configured to: issue a reminder when the reminder threshold (low threshold) is reached, and continue reading data after the reminder; issue an alarm when the alarm threshold (high threshold) is reached; and record the number of alarms.

[0036] As a further step, the alarm 5 is an indicator light, and at least one alarm 5 is provided. At least one warning port 11 is opened on the housing 1, and one warning port 11 corresponds to one alarm 5.

[0037] As one implementation method, specifically in the output indication design of this utility model, an alarm 5 uses a dual-color LED indicator as a visual status display method. When one color of the configured dual-color LED indicator is lit, it is in a warning state, indicating a potential risk to the equipment's operation; when the other color is lit, it is in a damaged state.

[0038] In another implementation, specifically, the alarm 5 is an indicator light, and there are two alarms 5. Two warning ports 11 are provided on the housing 1, and each warning port 11 corresponds to one of the two alarms 5. In the output indication design of this utility model, the alarm 5 uses LED indicator lights as a visual status display method. One alarm 5 is set to yellow, and the other alarm 5 is set to red. When the yellow alarm 5 is lit, it visually indicates that the linear module is in a warning state, meaning that there may be a potential risk in the operation of the equipment, requiring further inspection by relevant personnel.

[0039] When the red alarm 5 lights up, it clearly indicates that the linear module is damaged and requires immediate shutdown and maintenance to prevent the fault from escalating and causing more serious impact on production.

[0040] As another implementation method, the alarm 5 can also be implemented in other ways. It can use electrochromic ink dots, which can be activated by an electrical signal to change the color of the ink to achieve a visual alarm; it can also use a surface-mount fuse with an observable fuse point, which will blow when the circuit is abnormally overloaded, and its blown state will intuitively present the fault signal; or it can use a thermochromic label, which will change color immediately when the temperature is abnormal, so as to achieve a rapid warning of temperature abnormality; or it can use an electromagnetic flip-tag indicator, which uses an electromagnetic drive mechanism to flip and display a specific label when the alarm is triggered, so as to clearly convey the alarm information.

[0041] It should be noted that this utility model aims to protect the physical structure of the slotted photoelectric sensor with collision monitoring (including but not limited to the design of the housing 1 and the layout and installation of each component). Furthermore, the microprocessor 4 in this utility model only determines whether the reminder threshold or alarm threshold has been reached based on the data transmission signal of the accelerometer sensor 3, which is a logical judgment in the prior art. Therefore, this utility model does not involve the improvement of the algorithm.

[0042] It is worth noting that the alarm 5 in this solution includes, but is not limited to, LED indicator lights, and can also be a buzzer. That is, when using a buzzer, a short and rapid buzzer can be set to represent an emergency fault warning, and a long and slow buzzer can represent an abnormal warning. When using a buzzer, one alarm 5 and one warning port 11 are both provided.

[0043] As a further step, the housing 1 includes a front outer shell 12 and a rear cover 13, with the rear cover 13 connected to the front outer shell 12. The connection method between the rear cover 13 and the front outer shell 12 includes, but is not limited to, snap-fit, adhesive or welding, and may also be other structures for connection. The circuit board 2 is disposed between the front outer shell 12 and the rear cover 13. The front outer shell 12 is provided with two cavity bumps, and the two cavity bumps are arranged opposite to each other. The transmitting and receiving diodes 6 include a transmitting diode and a receiving diode that emit towards each other, and the transmitting diode and the receiving diode are respectively disposed in the corresponding cavity bumps.

[0044] Specifically, each cavity protrusion has a bracket inside, which supports the transmitting and receiving diodes 6. This structural design is a conventional design in the field of slotted photoelectric sensors, and will not be elaborated on in this article.

[0045] As a further step, two mounting holes 18 are provided on the front housing 12. The present invention can be securely installed in the predetermined installation position on the linear module through the mounting holes 18 to ensure the normal use of the present invention. In addition to realizing the functions of resetting and positioning the linear module and detecting out-of-range, the slotted photoelectric sensor can also monitor the movement of the slider on the linear module in real time.

[0046] As a further step, the casing 1 can be made of either metal or plastic, which can protect the circuit and serve as an encapsulation.

[0047] Combination Figure 4 and Figure 5 As shown, as an alternative implementation, the overall structure of the housing 1 in the slotted photoelectric sensor provided in this embodiment can also be "F", "K", "L", "R" or "T" shaped. The above different configurations can be applied to different installation spaces and positions. In different configurations, the positions of the mounting hole 18 and the warning port 11 are different, all of which are to adapt to different installation positions. This will not be elaborated further in this article.

[0048] It is worth noting that, Figure 4 and Figure 5 The slotted photoelectric sensor with a "Y" structure selected in the middle box is... Figure 1 and Figure 2 Configuration of a mid-groove type photoelectric sensor.

[0049] The working principle and usage process of this utility model: When in use, after fixing this utility model in the predetermined installation position of the linear module (i.e., the base of the linear module), the slotted photoelectric sensor can not only realize the functions of resetting the positioning of the linear module and detecting out-of-range, but also monitor the motion status of the slider on the linear module in real time.

[0050] Specifically, the linear module can be reset and out-of-range detection functions by using the transmitting and receiving diode 6 in conjunction with the photoelectric baffle. This technology is a conventional technology and will not be elaborated on in this article. When the slider of the linear module impacts the base limit block of the linear module driven by the linear module motor, the instantaneous vibration between the slider and the limit block can be transmitted to the base. Thus, the accelerometer sensor 3 can detect the instantaneous vibration acceleration parameters generated by the impact in real time and output analog data transmission signals. When the microprocessor 4 receives the signal, processes and analyzes it, it can permanently store the acceleration value that reaches the threshold and simultaneously trigger an alarm using the alarm 5. The alarm is a permanent indication information with strong stability and is not affected by external interference. It can eliminate signals that do not cause damage to the module due to its own movement, ensuring that maintenance personnel can perform timely maintenance based on the target alarm signal, greatly extending the service life and stability of the linear module.

[0051] It is worth noting that this utility model merely provides a physical architecture for implementing a slotted photoelectric sensor with collision monitoring, and does not involve the protection of data processing algorithms and logic methods. It should be emphasized that although the algorithm is not described in detail herein, those skilled in the art can apply and implement it using the physical architecture of this solution based on their professional knowledge. The proposed processing algorithm and logic methods are merely supplementary explanations to demonstrate the feasibility and authenticity of this utility model, and this utility model does not seek protection for the algorithm technology.

[0052] More importantly, in the technical solution of this utility model, the slotted photoelectric sensor and the accelerometer sensor on the circuit board 2 operate independently and do not interfere with each other. When they are powered by the same power line 7, they can realize their respective sensing functions with independent operating mechanisms, ensuring that the data acquisition and signal transmission processes are not affected by each other, thereby providing reliable monitoring and feedback support for the stable operation of the system.

[0053] It is worth noting that the impact mentioned in this article specifically refers to the collision contact process between the slider and the base limit block, while the machine collision uses the common concept in the field of mechanical engineering, which refers to the component collision failure caused by the equipment due to loss of motion control or abnormal parameters.

[0054] In this invention, the term "plural" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0055] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A slotted photoelectric sensor with collision monitoring, characterized in that, The device includes a housing (1), and a circuit board (2) is provided in the inner cavity of the housing (1). The circuit board (2) integrates an accelerometer sensor (3) for real-time monitoring of the motion state of the linear module, a microprocessor (4) for receiving the signal from the accelerometer sensor (3) and processing and analyzing the signal, and an alarm (5) for issuing an alarm signal. The circuit board (2) is provided with a pair of transmitting and receiving diodes (6) for detection. The circuit board (2) is electrically connected to a power supply line (7) for power supply.

2. A slotted photoelectric sensor with collision monitoring according to claim 1, characterized in that, The microprocessor (4) includes a threshold module (8) for setting a threshold, a judgment module (9) for judging the signal of the accelerometer sensor (3), and a storage module (10) for storing the signal data of the accelerometer sensor (3).

3. A slotted photoelectric sensor with collision monitoring according to claim 1, characterized in that, The alarm (5) is an indicator light, and at least one indicator light is provided.

4. A slotted photoelectric sensor with collision monitoring according to claim 3, characterized in that, The housing (1) has at least one warning port (11), and one warning port (11) corresponds to one alarm (5).

5. A slotted photoelectric sensor with collision monitoring according to claim 1, characterized in that, The housing (1) includes a front outer shell (12) and a rear cover (13), the rear cover (13) being connected to the front outer shell (12), and the circuit board (2) being disposed between the front outer shell (12) and the rear cover (13).

6. A slotted photoelectric sensor with collision monitoring according to claim 5, characterized in that, The front outer shell (12) is provided with two cavity protrusions, and the two cavity protrusions are arranged opposite to each other.

7. A slotted photoelectric sensor with collision monitoring according to claim 6, characterized in that, The transmitting and receiving diodes (6) include transmitting diodes and receiving diodes that emit towards each other, and the transmitting diodes and receiving diodes are respectively disposed in corresponding cavity bumps.

8. A slotted photoelectric sensor with collision monitoring according to claim 6, characterized in that, Two mounting holes (18) are provided on the front housing (12).

9. A slot-type photoelectric sensor with collision monitoring according to claim 1, characterized in that, The shell (1) is made of metal or plastic.

10. A slotted photoelectric sensor with collision monitoring according to claim 1, characterized in that, The circuit board (2) also integrates a slotted photoelectric controller and a slotted photoelectric indicator.

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