Photoelectric sensor testing device

Abstract

The utility model discloses a photoelectric sensor testing device, which comprises a reflux tank, a testing tank, two racks, a lifting device and a supply device, and is characterized in that the testing tank is obliquely arranged on the reflux tank and comprises a linear slideway, a parabolic slideway and an arc-shaped slideway, the linear slide way, the parabolic slide way and the arc slide way are arranged side by side and separated by partition plates, the linear slide way, the parabolic slide way and the arc slide way are arranged in one-to-one correspondence with the three backflow slide ways on the backflow groove respectively, and a through hole sequentially penetrating through the linear slide way, the parabolic slide way and the arc slide way is formed in the bottom end of the testing groove; a photoelectric sensor which shares the same center line with the through hole is arranged on the test groove; and the two racks are symmetrically arranged at the top end of the test groove. Therefore, by simulating the motion states of the detected object at different speeds, the performance of the correlation type photoelectric sensor in a complex and changeable actual industrial production environment can be comprehensively and truly evaluated, and the detection precision and comprehensiveness are effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of sensor testing, and in particular to a photoelectric sensor testing device. Background Technology

[0002] As a crucial sensing element in modern industry and numerous technological fields, photoelectric sensors' core function is to accurately convert light signals into electrical signals. In practical applications, photoelectric sensors mainly encompass various types, including through-beam, diffuse reflection, specular reflection, and slot-type photoelectric sensors. Each type plays a key role in different scenarios due to its unique structural design and operating characteristics.

[0003] However, current methods for detecting the sensitivity of through-beam photoelectric sensors have significant limitations. In most cases, detection is simply performed by fixing a light-shielding plate to simulate an object blocking the light path. This method is too simplistic, only simulating a relatively ideal and simple working condition. In actual industrial production environments, conditions are often extremely complex, and the speed of the measured object varies greatly. The fixed light-shielding plate detection method cannot comprehensively and realistically evaluate the performance of through-beam photoelectric sensors under complex and variable real-world conditions. This results in a significant deviation between the detection results and the sensor's actual performance in practical applications, failing to provide accurate and reliable sensor performance evaluation data for industrial production. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a photoelectric sensor testing device that, by simulating the motion state of the object under test at different speeds, can comprehensively and realistically evaluate the performance of the through-beam photoelectric sensor in complex and ever-changing actual industrial production environments, effectively improving the accuracy and comprehensiveness of the detection.

[0006] To achieve the above objectives, this utility model proposes a photoelectric sensor testing device, comprising a reflux trough, a testing trough, two racks, a lifting device, and a supply device. The testing trough is inclinedly disposed on the reflux trough and includes a straight slide, a parabolic slide, and an arc-shaped slide. The straight slide, parabolic slide, and arc-shaped slide are arranged side-by-side and separated by a partition. Each of the three slides corresponds to one of the three reflux slides on the reflux trough. A through hole is formed at the bottom of the testing trough, sequentially penetrating the straight slide, parabolic slide, and arc-shaped slide. A photoelectric sensor with the same center line as the through hole is disposed on the testing trough. The two racks are symmetrically disposed at the top of the testing trough. The lifting device is disposed near the outlet of the reflux trough. The supply device is movably mounted on the lifting device and is positioned opposite the outlet of the reflux trough, and is intermittently connected to the two racks.

[0007] The photoelectric sensor testing device of this invention can comprehensively and realistically evaluate the performance of through-beam photoelectric sensors in complex and ever-changing actual industrial production environments by simulating the motion state of the object under test at different speeds, effectively improving the accuracy and comprehensiveness of detection.

[0008] In addition, the photoelectric sensor testing device proposed in the application may also have the following additional technical features:

[0009] Specifically, the lifting device includes two sets of columns, a support plate, guide wheels, a support frame, a winding drum, a traction rope, and a drive mechanism. The two sets of columns are symmetrically arranged near the discharge port of the return trough. The support plate is fixedly mounted on the top of the two sets of columns. The guide wheels are rotatably mounted on the bottom wall of the support plate. The support frame is located near the two sets of columns, and the winding drum is rotatably mounted on the support frame. One end of the traction rope is connected to the winding drum, and the other end of the traction rope passes around the guide wheels and is connected to the supply device. The drive mechanism is mounted on the support frame, and its output end is connected to a rotating shaft at one end of the winding drum.

[0010] Specifically, the supply device includes a supply trough, a support shaft, two gears, two tension springs, three rocker arms, and three ball bearings. The supply trough is movably mounted on two sets of columns. The supply trough is connected to the other end of the traction rope, and the three supply channels of the supply trough correspond one-to-one with the return channels of the return trough. The support shaft is rotatably mounted inside the supply trough, and both ends of the support shaft extend through the supply trough and are fixedly connected to the corresponding gears. The gears intermittently mesh with the rack. The two tension springs are respectively mounted on both sides of the supply trough, with one end fixedly connected to the side wall of the supply trough and the other end fixedly connected to the support shaft via a connecting rope. The three rocker arms are respectively mounted inside the supply channels of the supply trough, and are respectively sleeved and fixed on the support shaft. The three ball bearings are movably mounted on the corresponding rocker arms.

[0011] Specifically, the bottom wall of the inner cavity of the return channel is inclined, and the bottom wall of the inner cavity at one end of the return channel near the supply channel is lower than the bottom wall of the inner cavity at the other end.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0014] Figure 1 A three-dimensional view of a photoelectric sensor testing device according to an embodiment of this utility model. Figure 1 ;

[0015] Figure 2 A three-dimensional view of a photoelectric sensor testing device according to an embodiment of this utility model. Figure 2 ;

[0016] Figure 3 for Figure 2 A magnified structural diagram of part A in the diagram;

[0017] Figure 4 This is a cross-sectional view of a photoelectric sensor testing device according to an embodiment of the present invention.

[0018] As shown in the figure: 10. Return channel; 20. Test channel; 21. Straight slide; 22. Parabolic slide; 23. Arc slide; 201. Through hole; 202. Photoelectric sensor; 30. Rack; 40. Lifting device; 41. Column; 42. Support plate; 43. Guide wheel; 44. Support frame; 45. Rewind drum; 46. Traction rope; 47. Drive mechanism; 50. Supply device; 51. Supply channel; 52. Support shaft; 53. Gear; 54. Tension spring; 55. Rocker; 56. Ball. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0020] The photoelectric sensor testing device of this utility model embodiment will now be described with reference to the accompanying drawings.

[0021] like Figures 1-4 As shown, the photoelectric sensor testing device of this utility model embodiment may include a return trough 10, a test trough 20, two racks 30, a lifting device 40, and a supply device 50.

[0022] The test tank 20 is inclinedly arranged on the return tank 10. The test tank 20 may include a straight slide 21, a parabolic slide 22 and an arc slide 23. The straight slide 21, the parabolic slide 22 and the arc slide 23 are arranged side by side and separated by a partition. The straight slide 21, the parabolic slide 22 and the arc slide 23 are respectively arranged in a one-to-one correspondence with the three return slides on the return tank 10.

[0023] In this embodiment of the invention, the bottom wall of the inner cavity of the return trough 10 is inclined, and the bottom wall of the inner cavity at one end of the return trough 10 near the supply trough 51 is lower than the bottom wall of the inner cavity at the other end. It can be understood that after the ball 56 rolls from the slide of the test trough 20 into the return trough 10, due to the inclination of the bottom wall of the return trough 10, the ball 56 automatically flows back to the corresponding return slide of the supply trough 51 under the action of gravity, thus realizing the recycling of materials.

[0024] The bottom of the test slot 20 is provided with a through hole 201 that passes through the straight slide 21, the parabolic slide 22 and the arc slide 23 in sequence. The test slot 20 is provided with a photoelectric sensor 202 that is on the same center line as the through hole 201.

[0025] It should be noted that the photoelectric sensor 202 described in this embodiment may include a transmitter and a receiver, wherein the transmitter and receiver are symmetrically arranged on the two side walls of the test slot 20, and the transmitter and receiver are arranged with the same center line as the through hole 201.

[0026] Two racks 30 are symmetrically arranged at the top of the test tank 20. The lifting device 40 is located near the discharge port of the return tank 10. The supply device 50 is movably arranged on the lifting device 40. The supply device 50 is arranged opposite to the outlet end of the return tank 10, and the supply device 50 is intermittently connected to the two racks 30.

[0027] To clearly illustrate the previous embodiment, in one embodiment of this utility model, as follows: Figure 2 As shown, the lifting device 40 may include two sets of columns 41, support plate 42, guide wheel 43, support frame 44, winding drum 45, traction rope 46 and drive mechanism 47.

[0028] Two sets of columns 41 are symmetrically arranged near the discharge port of the return trough 10. The support plate 42 is fixedly installed on the top of the two sets of columns 41. The guide wheel 43 is rotatably installed on the bottom wall of the support plate 42. The support frame 44 is arranged near the two sets of columns 41. The winding drum 45 is rotatably installed on the support frame 44.

[0029] One end of the traction rope 46 is connected to the winding drum 45, and the other end of the traction rope 46 passes around the guide wheel 43 and is connected to the supply device 50. The drive mechanism 47 is mounted on the support frame 44, and the output end of the drive mechanism 47 is connected to the shaft at one end of the winding drum 45.

[0030] It should be noted that the drive mechanism 47 described in this embodiment may be a drive motor.

[0031] Furthermore, in one embodiment of this utility model, such as Figures 1-4 As shown, the supply device 50 may include a supply groove 51, a support shaft 52, two gears 53, two tension springs 54, three rocker plates 55, and three balls 56.

[0032] The supply trough 51 is movably mounted on two sets of columns 41. The other end of the supply trough 51 is connected to the traction rope 46. The three supply slides of the supply trough 51 are respectively set to correspond one-to-one with the return slides of the return trough 10. The support shaft 52 is rotatably mounted in the supply trough 51. Both ends of the support shaft 52 pass through the supply trough 51 and are fixedly connected to the corresponding gears 53. The gears 53 intermittently mesh with the rack 30.

[0033] Two tension springs 54 are respectively arranged on both sides of the supply groove 51, and one end of the tension spring 54 is fixedly connected to the side wall of the supply groove 51. The other end of the tension spring 54 is fixedly connected to the support shaft 52 through the connecting rope. Three rocker plates 55 are respectively arranged in the supply slide of the supply groove 51, and the three rocker plates 55 are respectively sleeved and fixed on the support shaft 52. Three rolling balls 56 are respectively movably arranged on the corresponding rocker plates 55.

[0034] Understandably, a through hole 201 is provided at the bottom of the test tank 20. The transmitter and receiver of the photoelectric sensor 202 are located on the two side walls of the test tank 20 and are concentric with the through hole 201. When the rolling ball 56 passes through the through hole 201, it blocks the light path of the photoelectric sensor 202, causing a change in the light intensity received by the receiver. The photoelectric sensor 202 outputs an electrical signal based on the change in light intensity. By detecting and analyzing these electrical signals, the performance of the photoelectric sensor 202 under different motion states can be evaluated, such as detecting its sensitivity, i.e., the sensor's ability to detect objects with different speeds and trajectories, and detecting its response time, i.e., the time interval from when the rolling ball 56 blocks the light path to when the sensor outputs a signal.

[0035] Specifically, when it is necessary to test the performance of the photoelectric sensor, the relevant personnel need to first place three balls 56 in the supply chute of the supply slot 51, so that the balls 56 are positioned on the rocker 55. Then, the drive mechanism 47 is activated, which drives the winding drum 45 to rotate, raising the supply device 50 to its highest position via the traction rope 46. At this point, the gear 53 and rack 30 begin to mesh.

[0036] As the supply device 50 rises, the gear 53 rolls on the rack 30, driving the support shaft 52 to rotate, which in turn causes the rocker plate 55 to tilt, and the ball 56 rolls off the rocker plate 55.

[0037] At this time, the three rolling balls 56 roll down along the straight slide 21, the parabolic slide 22, and the arc-shaped slide 23, respectively. Due to the different shapes of the slides, the speed and trajectory of the rolling balls 56 on different slides are also different. During the rolling process, when the rolling ball 56 passes through the through hole 201, it will block the light path of the photoelectric sensor 202. The photoelectric sensor 202 detects the change in light intensity and outputs a signal.

[0038] Observe and record the signal changes of the photoelectric sensor 202 when it detects the rolling ball 56 on different tracks, including data such as signal trigger time and signal strength. Based on this data, analyze the performance of the through-beam photoelectric sensor 202 under different speeds and motion trajectories.

[0039] When the supply device 50 rises to its highest position, the drive motor reverses, the winding drum 45 releases the traction rope 46, and the supply device 50 descends. During the descent, the gear 53 disengages from the rack 30, the tension spring 54 pulls the support shaft 52 to reverse, and the rocker 55 returns to its initial state, ready for the next test.

[0040] After the ball 56 rolls from the slide of the test tank 20 to the return tank 10, it automatically flows back to the corresponding supply slide of the supply tank 51 under the action of the inclined bottom wall of the return tank 10, realizing the recycling of materials.

[0041] Repeat the above testing steps multiple times to obtain more accurate test data. After each test, organize and analyze the test data to evaluate the performance of the through-beam photoelectric sensor 202, such as parameters like sensitivity and response time.

[0042] In summary, the photoelectric sensor testing device of this utility model, by simulating the motion state of the object under test at different speeds, can comprehensively and realistically evaluate the performance of the through-beam photoelectric sensor in complex and ever-changing actual industrial production environments, effectively improving the accuracy and comprehensiveness of detection.

[0043] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A photosensor testing apparatus, characterized by, Including backflow tank, test tank, two racks, lifting device and feeding device, wherein, The test tank is obliquely arranged on the backflow tank, and the test tank comprises a straight slide, a parabolic slide and an arc slide, wherein, The straight slide, the parabolic slide and the arc slide are arranged side by side and separated by a partition, and the straight slide, the parabolic slide and the arc slide are arranged one by one corresponding to the three backflow slides on the backflow tank, and the bottom end of the test tank is provided with a through hole penetrating the straight slide, the parabolic slide and the arc slide in sequence, and the test tank is provided with a photoelectric sensor with the same center line as the through hole; Two racks are symmetrically arranged at the top end of the test tank; The lifting device is arranged near the discharge port of the backflow tank; The feeding device is movably arranged on the lifting device, and the feeding device is arranged opposite to the outlet end of the backflow tank, and the feeding device is intermittently connected with the two racks.

2. The photosensor test device of claim 1, wherein, The lifting device comprises two groups of columns, a support plate, a guide wheel, a support frame, a winding drum, a traction rope and a driving mechanism, wherein, Two groups of columns are symmetrically arranged near the discharge port of the backflow tank; The support plate is fixedly arranged at the top end of the two groups of columns; The guide wheel is rotatably arranged on the bottom wall of the support plate, the support frame is arranged near the two groups of columns, and the winding drum is rotatably arranged on the support frame; One end of the traction rope is connected with the winding drum, and the other end of the traction rope passes around the guide wheel and is connected with the feeding device; The driving mechanism is arranged on the support frame, and the output end of the driving mechanism is connected with the shaft of one end of the winding drum.

3. The photosensor test device of claim 2, wherein, The feeding device comprises a feeding groove, a support shaft, two gears, two tension springs, three flaps and three balls, wherein, The feeding groove is movably arranged on the two groups of columns, and the feeding groove is connected with the other end of the traction rope, and the three feeding slides of the feeding groove are arranged one by one corresponding to the backflow slides of the backflow tank; The support shaft is rotatably arranged in the feeding groove, and the two ends of the support shaft respectively penetrate out of the feeding groove and are fixedly connected with the corresponding gears, and the gears are intermittently engaged with the racks; Two tension springs are arranged on the two sides of the feeding groove, and one end of the tension spring is fixedly connected with the side wall of the feeding groove, and the other end of the tension spring is fixedly connected with the support shaft through a connecting rope; Three flaps are arranged in the feeding slides of the feeding groove, and the three flaps are fixedly sleeved on the support shaft; Three balls are movably arranged on the corresponding flaps.

4. The photosensor test device of claim 3, wherein, The inner cavity bottom wall of the backflow tank is obliquely arranged, and the inner cavity bottom wall near one end of the backflow tank is lower than the height of the inner cavity bottom wall of the other end.

Images