CN116908820A - Anti-interference device for background inhibition photoelectric sensor - Google Patents

Abstract

The application relates to the technical field of sensor detection, in particular to an anti-interference device for a background inhibition photoelectric sensor, which aims to solve the problem that the existing photoelectric sensor is tested in a unified environment and is difficult to evaluate the anti-interference capability of the sensor. The application has the effect of improving the accuracy of the anti-interference capability of the test sensor.

Description

Anti-interference device for background inhibition photoelectric sensor

Technical Field

The application relates to the technical field of sensor detection, in particular to an anti-interference device for a background inhibition photoelectric sensor.

Background

The photoelectric sensor utilizes the reflection principle to complete photoelectric control, is easily influenced by background colors due to different reflectivities of different backgrounds, and can detect different distances under different background colors. The background suppression photoelectric sensor is a sensor which does not interfere with the detection function even when the background is changed, and can stably detect a target object with a bright mirror surface, and even a variable frequency fluorescent lamp is difficult to influence the detection precision of the background suppression photoelectric sensor.

The background inhibition photoelectric sensor needs to be subjected to an anti-interference test after being manufactured, but the current photoelectric sensors are all tested in a constant environment, so that the anti-interference capability of the background inhibition photoelectric sensor is difficult to accurately evaluate.

Disclosure of Invention

In order to improve the accuracy of the anti-interference capability of the test sensor, the application provides an anti-interference device for a background inhibition photoelectric sensor.

The application provides an anti-interference device for a background inhibition photoelectric sensor, which adopts the following technical scheme:

the utility model provides a background suppresses anti-interference device for photoelectric sensor, includes bottom plate and curb plate, the curb plate sets up perpendicularly on the bottom plate, set up the fixed slot that is used for fixed sensor on the curb plate, it is provided with the reflector block to slide on the bottom plate, the reflector block includes a plurality of backdrop that can set up relatively with the sensor, a plurality of be provided with different colours on the backdrop.

Through adopting above-mentioned technical scheme, test sensor and different colour background boards respectively are in the inductivity within range, the sensor compares each group distance interval with the interval of different colours background boards, if the intersection that multiunit experimental data exists in common, then demonstrate that the interference killing feature of this sensor reaches standard, if not exist, then demonstrate that the interference killing feature of this sensor does not reach standard, and then verified the interference killing feature of sensor under the background board of different colours, thereby promoted the accuracy nature of test sensor interference killing feature device.

Preferably, the bottom plate is provided with a graduated scale, and the graduated scale is arranged along the moving direction of the transmitting plate.

Through adopting above-mentioned technical scheme, through looking at the scale numerical value of reflector block below, obtain the distance parameter, the scale can more accurate measure the distance between background board and the sensor, compare with measuring with the ruler in the next door, more convenient and experimental data is more accurate.

Preferably, a limiting component for fixing the sensor is mounted on the side plate.

Through adopting above-mentioned technical scheme, spacing subassembly can fix the sensor, reduces the sensor and leads to experimental data error too big possibility because of appearing sliding in the experimentation.

Preferably, the limiting assembly comprises a butt joint and a rocker for driving the butt joint to abut against the sensor.

By adopting the technical scheme, the rocker is pressed to drive the abutting joint to move downwards to abut against the sensor, so that the sensor is limited in the fixed groove.

Preferably, the limiting assembly comprises two clamping plates arranged on the side plates in a sliding manner and a driving piece for driving the two clamping plates to be close to each other.

Through adopting above-mentioned technical scheme, the driving piece can drive two splint and be close to each other to carry out the centre gripping with the sensor, guaranteed the stability of sensor in the experimentation.

Preferably, a sliding rail is fixed on the bottom plate, a sliding block is arranged on the sliding rail in a sliding mode, and the reflecting block is rotatably arranged on the sliding block.

Through adopting above-mentioned technical scheme, the slider slides and sets up on the slide rail, and the transmission piece of being convenient for is being close to or is kept away from the direction of sensor and remove, and the reflection piece rotates and sets up on the slider, the switching of the different colour background boards of being convenient for.

Preferably, a braking piece for fixing the sliding block on the sliding rail is arranged on the sliding block.

By adopting the technical scheme, the background plate needs to keep the stability of the sliding block in the testing process, the braking piece can fix the sliding block on the sliding rail, and the possibility that the degree errors occur due to the sliding block movement in the testing process is reduced.

Preferably, a cylinder is arranged on the reflecting block in a penetrating way, one end of the cylinder penetrates through the reflecting block to be fixedly connected with the sliding block, and a locking piece for limiting the rotation of the reflecting block is arranged on the cylinder.

Through adopting above-mentioned technical scheme, when the in-process that the background board tested, the locking piece can carry out spacingly with the reflector block for the reflector block is fixed with a section of thick bamboo post, thereby has reduced the reflector block and has appeared rotating and lead to background board and sensor not to appear to its condition, thereby has improved the accuracy nature of test.

Preferably, an annular groove is formed in the inner side wall of the reflecting block, a plurality of clamping grooves are formed in the bottom wall, away from the cylinder column, of the annular groove, the locking piece is a plunger used for being inserted into the clamping grooves, an elastic piece is connected to the plunger, the other end of the elastic piece is fixed to the cylinder column, and an adjusting piece used for controlling the shrinkage of the elastic piece is arranged on the plunger.

Through adopting above-mentioned technical scheme, when rotating the background board, the plunger rotates in the spout, and the elastic component is in the state of shrink, and when the background board rotated to when being relative with the sensor, the plunger was inserted in the joint inslot under the elasticity effect of elastic component, and the joint inslot produced spacing effect to the plunger to make the reflector block fix on a section of thick bamboo post, reduced the reflector block and appear pivoted possibility in the experimentation. When the next background plate needs to be switched, the adjusting piece controls the elastic piece to shrink, so that the plunger is moved out of the clamping groove, and the reflecting block can be rotated conveniently.

Preferably, a rotating rod is arranged in the cylinder column, the adjusting piece comprises a traction rope, one end of the traction rope is fixedly connected to the plunger, and the other end of the traction rope penetrates through the cylinder column to be fixed to the rotating rod.

Through adopting above-mentioned technical scheme, when the background board of different colours needs to be switched, hold the dwang and rotate, the dwang rolls up the haulage rope to pulling plunger shifts out from the joint inslot, rotate the reflector block again, make the plunger slide in the annular, until the plunger inserts in the joint groove on the next background board, thereby switches the background board.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the method comprises the steps of respectively testing the distance interval between a sensor and different-color background plates within the induction capability range, comparing each group of distance interval, if a plurality of groups of experimental data have a common intersection, proving that the anti-interference capability of the sensor meets the standard, and if the experimental data do not exist, proving that the anti-interference capability of the sensor does not meet the standard, further verifying the anti-interference capability of the sensor under the different-color background plates, and further improving the accuracy of a device for testing the anti-interference capability of the sensor;

2. when the background plate is rotated, the plunger rotates in the sliding groove, the elastic piece is in a contracted state, when the background plate rotates to be opposite to the sensor, the plunger is inserted into the clamping groove under the elastic action of the elastic piece, and the clamping groove limits the plunger, so that the reflecting block is fixed on the cylinder column, and the possibility of rotation of the reflecting block in the experimental process is reduced. When the next background plate needs to be switched, the adjusting piece controls the elastic piece to shrink, so that the plunger is moved out of the clamping groove, and the reflecting block can rotate conveniently;

3. when the background plates with different colors are required to be switched, the rotating rod is held and rotated, the traction rope is wound by the rotating rod, so that the plunger is pulled to move out of the clamping groove, and then the reflecting block is rotated, so that the plunger slides in the annular groove until the plunger is inserted into the clamping groove on the next background plate, and the background plate is switched.

Drawings

FIG. 1 is a schematic view showing the overall structure of embodiment 1 of the present application;

FIG. 2 is an enlarged schematic view of the reflection block in embodiment 1 of the present application;

FIG. 3 is a schematic cross-sectional view of a reflector block according to embodiment 1 of the present application;

FIG. 4 is a schematic view of an exploded construction of a rotary lever according to embodiment 1 of the present application;

fig. 5 is an enlarged schematic view of the limiting member according to embodiment 2 of the present application.

Reference numerals illustrate: 1. a bottom plate; 11. a slide rail; 12. a graduated scale; 2. a side plate; 21. a fixing groove; 22. a chute; 23. a fixing plate; 3. a limit component; 31. a base; 32. a rocker; 33. a fastener; 34. a butt joint; 35. a clamping plate; 36. a bidirectional screw rod; 37. a grip; 4. a slide block; 41. a cylinder column; 42. an observation plate; 43. a brake member; 431. a threaded rod; 432. rotating the handle; 5. a reflection block; 51. a background plate; 52. a through groove; 53. an annular groove; 54. a clamping groove; 6. a locking member; 61. a plunger; 62. an elastic member; 7. an adjusting member; 71. a rotating lever; 72. a traction rope.

Detailed Description

The application is described in further detail below with reference to fig. 1-5.

The embodiment of the application discloses an anti-interference device for a background inhibition photoelectric sensor.

Example 1:

referring to fig. 1, the sensor comprises a bottom plate 1 and a side plate 2, wherein the side plate 2 is vertically arranged on the bottom plate 1 and fixedly connected with the bottom plate 1, and a fixing groove 21 for limiting the sensor is formed in the side plate 2. The side plate 2 is further provided with a limiting component 3 for fixing the sensor in the fixed groove 21, the side plate 2 is vertically connected with a fixed plate 23 for bearing the limiting component 3, the limiting component 3 comprises a base 31 detachably connected to the fixed plate 23, the base 31 is respectively and rotatably connected with a rocker 32 and a fastener 33, the fastener 33 is rotatably connected with the rocker 32, the fastener 33 is fixedly connected with a fastening rod, and the end part of the fastening rod is fixedly connected with an elastic abutting joint 34.

When the rocker 32 is pressed, the end of the rocker 32 drives the fastener 33 to rotate around the base 31, so that the abutting joint 34 approaches the fixing groove 21, and the abutting joint 34 abuts against the sensor, thereby limiting the sensor in the fixing groove 21.

Referring to fig. 1 and 2, two parallel sliding rails 11 are fixed on the base plate 1, a sliding block 4 is slidably arranged on the sliding rails 11, a cylinder 41 is fixedly connected to the sliding block 4, a reflecting block 5 for reflecting light of the sensor is arranged on the sliding block 4, and a through groove 52 for the cylinder 41 to penetrate is formed in the transmitting block. The base plate 1 is provided with a graduated scale 12 parallel to the sliding rails 11, the graduated scale 12 is arranged between the two sliding rails 11, and the sliding block 4 is connected with an observation plate 42 which is perpendicular to the base plate 1.

The sensor is installed in the fixed groove 21, the sensor is fixed through the limiting component 3, the sliding block 4 is used for adjusting the distance between the reflecting block 5 and the sensor, when the sensing capacity of the sensor is in a normal interval range, the degree of the graduated scale 12 is checked, and the numerical value of the interval range of the change of the graduated scale 12 is recorded when the sensing capacity of the sensor is in the normal interval range. The viewing plate 42 is vertically disposed on the scale 12 to facilitate more accurate readings of the scale 12 and to reduce errors in readings of the scale 12.

Referring to fig. 2, a braking member 43 for fixing the slider 4 on the slide rail 11 is disposed on the slider 4, the braking member 43 includes a rotating handle 432, a threaded rod 431 is fixedly connected to the rotating handle 432, the threaded rod 431 is in threaded connection with the slider 4, and one end of the threaded rod 431 away from the rotating handle 432 passes through the slider 4 and can be abutted against the side wall of the slide rail 11.

When the sliding block 4 needs to move on the sliding rail 11, the rotating handle 432 is screwed to separate the threaded rod 431 from the sliding rail 11, so that the sliding block 4 can move on the sliding rail 11 conveniently, and the distance between the reflecting block 5 and the sensor can be adjusted, so that the sensing capability of the sensor is in a normal interval range. After the sliding block 4 is moved, the sliding block 4 needs to be limited, so that the possibility of the sliding block 4 shifting during a measurement experiment, which leads to the change of a measurement value, is reduced. Screwing the turning knob 432 makes the threaded rod 431 abut against the slide rail 11, thereby fixing the slider 4 on the slide rail 11, reducing the possibility of occurrence of slippage of the slider 4 at the time of measurement.

Referring to fig. 2 and 3, the reflection block 5 includes a plurality of background plates 51, in this embodiment, the reflection block 5 is rectangular, the number of the background plates 51 is four, different paints of different colors are coated on different background plates 51, and in other embodiments, the number of the background plates 51 may be any number greater than four. Be provided with on the section of thick bamboo post 41 and be used for spacing reflector block 5 pivoted locking piece 6, offer annular channel 53 on the lateral wall of logical groove 52, offer a plurality of joint grooves 54 on the diapire that annular channel 53 kept away from section of thick bamboo post 41, a plurality of joint grooves 54 are located the middle part of corresponding background board 51 respectively, locking piece 6 is including the plunger 61 that is used for inserting joint groove 54, the tip fixedly connected with elastic component 62 of plunger 61, the one end that elastic component 62 kept away from plunger 61 links to each other with section of thick bamboo post 41 is fixed, elastic component 62 can be spring, elastic column and elastic rubber etc.. The plunger 61 is further provided with an adjusting member 7 for withdrawing the plunger 61 from the engagement groove 54.

The background plates 51 with different colors are rotated to be opposite to the sensor, the distance between the reflecting block 5 and the sensor is adjusted, the values of the distance ranges between the different background plates 51 and the sensor are measured respectively in the range of the normal sensing capability of the sensor, all the recorded value ranges are compared, whether a common value interval exists in all the experimental values is observed, if a common intersection exists, the anti-interference capability of the sensor is proved to reach the standard, and if the common intersection does not exist, the anti-interference capability of the sensor is proved to not reach the standard.

When the background plate 51 is rotated to be disposed opposite to the sensor, it is necessary to reduce the situation that the experimental error is excessively large due to the rotation of the background plate 51 during the experimental process. When the background plate 51 is rotated, the plunger 61 rotates in the chute 22, the elastic piece 62 is in a contracted state, when the background plate 51 rotates to be opposite to the sensor, the plunger 61 is inserted into the clamping groove 54 under the elastic action of the elastic piece 62, and the clamping groove 54 has a limiting effect on the plunger 61, so that the reflecting block 5 is fixed on the barrel column 41, and the possibility of rotation of the reflecting block 5 in the experimental process is reduced.

Referring to fig. 1 and 4, the rotary rod 71 is rotatably disposed in the barrel column 41, the adjusting member 7 includes a plurality of pulling ropes 72 fixedly connected to the plunger 61, one or more pulling ropes 72 may be provided, and an end of the pulling rope 72 remote from the plunger 61 is connected to the rotary rod 71 through the barrel column 41.

When the background plates 51 with different colors need to be switched, the rotating rod 71 is held and rotated, the rotating rod 71 winds the hauling rope 72, so that the plunger 61 is pulled to move out of the clamping groove 54, and the reflecting block 5 is rotated, so that the plunger 61 slides in the annular groove until the plunger 61 is inserted into the clamping groove 54 on the next background plate 51, and the background plate 51 is switched.

The implementation principle of the anti-interference device for the background inhibition photoelectric sensor provided by the embodiment of the application is as follows: the sensor is installed in the fixed groove 21, the sensor is fixed through the limiting component 3, the sliding block 4 on the sliding rail 11 is fixed on the sliding rail 11 through the braking piece 43, the traction rope 72 is wound through the rotating rod 71, the reflecting block 5 is rotated to enable the background plate 51 to be opposite to the sensor, the plunger 61 is inserted into the corresponding clamping groove 54 at the moment to limit the background plate 51, the degree of the graduated scale 12 is recorded when the sensor is in a normal sensing range, the range displayed by the graduated scale 12 is recorded according to the operation, the background plate 51 is switched again and the operation is repeated until the distance range between each background plate 51 and the sensor is recorded, all recorded numerical ranges are compared, if a plurality of groups of experimental data have a common intersection, the anti-interference capability of the sensor is up to standard, and if the anti-interference capability of the sensor is not up to standard, the anti-interference capability of the sensor is not up to standard is proved.

Example 2:

the difference between this embodiment and embodiment 1 is that, referring to fig. 5, a sliding groove 22 is formed on a side plate 2, a limit component 3 includes two clamping plates 35 slidably disposed in the sliding groove 22 and a driving member for driving the two clamping plates 35 to approach each other, the driving member includes a bidirectional screw 36 rotatably disposed on the side plate 2 and parallel to the side plate 2, one ends of the two clamping plates 35 penetrating through the sliding groove 22 are respectively in threaded connection with different thread sections of the bidirectional screw 36, and one end of the bidirectional screw 36 is fixedly connected with a grip 37.

The sensor is placed in the fixing groove 21, the column grip 37 is held and rotated, so that the bidirectional screw rod 36 is driven to rotate, and the two clamping plates 35 move in opposite directions when the bidirectional screw rod 36 rotates, so that the sensor is clamped.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. The anti-interference device for the background inhibition photoelectric sensor is characterized by comprising a bottom plate (1) and side plates (2), wherein the side plates (2) are vertically arranged on the bottom plate (1), a fixing groove (21) for fixing the sensor is formed in each side plate (2), a reflecting block (5) is arranged on the bottom plate (1) in a sliding mode, the reflecting block (5) comprises a plurality of background plates (51) which can be oppositely arranged with the sensor, and different colors are arranged on the background plates (51).

2. The anti-interference device for a background suppression photoelectric sensor according to claim 1, wherein a scale (12) is mounted on the base plate (1), and the scale (12) is disposed along a moving direction of the transmitting plate.

3. The anti-interference device for a background suppression photoelectric sensor according to claim 1, wherein a limiting component (3) for fixing the sensor is mounted on the side plate (2).

4. A background suppression photoelectric sensor anti-interference device according to claim 3, characterized in that the limit assembly (3) comprises an abutment (34) and a rocker (32) for driving the abutment (34) against the sensor.

5. A background suppression photoelectric sensor anti-interference device according to claim 3, characterized in that the limit assembly (3) comprises two clamping plates (35) slidably arranged on the side plates (2), and a driving member for driving the clamping plates (35) to approach each other.

6. The anti-interference device for the background suppression photoelectric sensor according to claim 1, wherein a sliding rail (11) is fixed on the bottom plate (1), a sliding block (4) is slidably arranged on the sliding rail (11), and the reflecting block (5) is rotatably arranged on the sliding block (4).

7. The anti-interference device for a background suppression photoelectric sensor according to claim 6, characterized in that a stopper (43) for fixing the slider (4) on the slide rail (11) is provided on the slider (4).

8. The anti-interference device for a background suppression photoelectric sensor according to claim 7, wherein a cylinder (41) is arranged on the reflecting block (5) in a penetrating way, one end of the cylinder (41) is fixedly connected with the sliding block (4) through the reflecting block (5), and a locking piece (6) for limiting the rotation of the reflecting block (5) is arranged on the cylinder (41).

9. The anti-interference device for the background suppression photoelectric sensor according to claim 8, characterized in that an annular groove (53) is formed in the inner side wall of the reflecting block (5), a plurality of clamping grooves (54) are formed in the bottom wall, away from the barrel column (41), of the annular groove (53), the locking piece (6) is a plunger (61) used for being inserted into the clamping grooves (54), an elastic piece (62) is connected onto the plunger (61), the other end of the elastic piece (62) is fixed onto the barrel column (41), and an adjusting piece (7) used for controlling the shrinkage of the elastic piece (62) is arranged on the plunger (61).

10. The anti-interference device for a background suppression photoelectric sensor according to claim 9, wherein a rotating rod (71) is arranged in the barrel column (41), the adjusting piece (7) comprises a traction rope (72), one end of the traction rope (72) is fixedly connected to the plunger (61), and the other end of the traction rope (72) penetrates through the barrel column (41) and is fixed on the rotating rod (71).