CN115327372B - Proximity switch action frequency detection device - Google Patents
Proximity switch action frequency detection device Download PDFInfo
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- CN115327372B CN115327372B CN202211269728.5A CN202211269728A CN115327372B CN 115327372 B CN115327372 B CN 115327372B CN 202211269728 A CN202211269728 A CN 202211269728A CN 115327372 B CN115327372 B CN 115327372B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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Abstract
The invention relates to the field of proximity switch detection devices, in particular to a proximity switch action frequency detection device which comprises a detection platform, wherein the detection platform is provided with a detection plate, a digital frequency meter and a laser range finder are integrated on the detection plate, and a proximity switch is arranged on the detection plate; an L-shaped sliding table is arranged on one side of the detection table, a U-shaped sliding groove is clamped on the sliding block, the U-shaped sliding groove is integrally connected with a horizontal sliding plate upwards, and the sliding plate can slide along the table surface of the detection table; the upper end of the electric telescopic rod is fixed in the middle of the lower surface of the detection plate; a rack is fixedly connected between the two detection plates; a motor is fixed on the detection table, a motor shaft of the motor is fixedly connected with a rotating shaft, a gear is fixed on the rotating shaft, and a detection column is fixed at the front end of the rotating shaft; the controller is fixed on the sliding plate, and the detection plate, the electric telescopic rod and the motor are all connected with the controller. The invention can measure the action frequency of a plurality of proximity switches, thereby greatly improving the detection efficiency.
Description
Technical Field
The invention relates to the field of proximity switch detection devices, in particular to a proximity switch action frequency detection device.
Background
There are three main types of proximity switches in common use: the capacitive proximity switch is mainly used for detecting nonmetal such as liquid, powder, plastics, tobacco and the like; the inductive proximity switch is used for detecting metal objects, and the detection distance is about 0.8-30mm; the Hall type proximity switch is mainly used for detecting magnetic objects. The proximity switch needs to measure the action frequency, the distance between the sensing surface of the proximity switch and the action sheet is about 80% of the action distance of the proximity switch when the action frequency is measured, the action frequency can be measured to judge that the proximity switch cannot respond to the motion state of an object in time, and no missing detection exists, which is important for production.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provide a proximity switch action frequency detection device.
The invention is realized by the following technical scheme:
a proximity switch action frequency detection device comprises a detection table, wherein two detection plates are arranged on the detection table, a digital frequency meter and a laser range finder are integrated on the detection plates, a longitudinal row of proximity switches are uniformly arranged on the detection plates, and the distance between the upper and lower adjacent proximity switches is greater than the action distance of the proximity switches; an L-shaped sliding table integrally extends outwards from one side of the detection table, a sliding block of the L-shaped sliding table faces downwards, a U-shaped sliding groove is clamped on the sliding block and can slide left and right along the sliding block, a horizontal sliding plate is integrally connected upwards to the outer side plate of the U-shaped sliding groove, one part of the sliding plate is positioned on the table top of the detection table, and the sliding plate can slide along the table top of the detection table; electric telescopic rods are symmetrically fixed on the left side and the right side of the sliding plate, and the upper ends of the electric telescopic rods are fixed in the middle of the lower surface of the detection plate; a rack is fixedly connected between the upper ends of the two detection plates close to one side of the detection table; a motor is fixed on the detection table, a motor shaft of the motor is fixedly connected with a rotating shaft, the rotating shaft is vertical to the rack, a gear is fixed on the rotating shaft and is positioned right below the rack, the gear is matched with the rack, when the gear is meshed with the rack, laser emitted by the laser range finder is irradiated on the rotating shaft, and the position of the laser range finder is higher than that of the uppermost proximity switch; a detection column is fixed at the front end of the rotating shaft, and a plurality of action pieces are uniformly arranged on the periphery of the side surface of the detection column; the controller is fixed in the outside of slide, and the equal wire connection controller of two pick-up plates, electric telescopic handle, motor all are connected with the controller.
Preferably, the rotating shaft is supported by a plurality of supporting plates, and the supporting plates are fixed on the detection platform.
Preferably, the motor is fixed on the detection table through a U-shaped base.
Preferably, the controller is a PLC display screen controller.
The proximity switch action frequency detection device can measure the action frequency of a plurality of proximity switches, greatly improves the detection efficiency, has high automation degree and high accuracy compared with a manual one-by-one test mode, and can replace the existing test mode for popularization and application.
Drawings
FIG. 1 is a schematic view of the structure of the uppermost proximity switch of the present invention;
FIG. 2 is a schematic structural view of the operation state of the present invention when detecting the lowermost proximity switch;
FIG. 3 is a structural diagram illustrating the present invention in a non-operating state;
FIG. 4 is a rear view of the present invention;
FIG. 5 is a schematic view of the inspection station of the present invention;
FIG. 6 is a schematic view of the U-shaped chute and the slide plate of the present invention.
In the figure, 1 is detected the platform, 2 is detected the board, 3 controllers, 4 digital frequency meters, 5 proximity switches, 6L type slip table, 7 sliders, 8U type spout, 9 slides, 10 electric telescopic handle, 11 racks, 12 motors, 13 pivots, 14 gears, 15 are detected the post, 16 action pieces, 17 backup pads, 18U type bases, 19 laser range finders.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The detection device comprises a detection table 1, wherein a sliding block 7 of an L-shaped sliding table 6,L type sliding table 6 is integrally connected outwards on one side of the detection table 1 and is vertically downward. A U type spout 8 slip joint is on the slider 7 of L type slip table 6, and the length of U type spout 8 is less than the length of L type slip table 6, and slider 7 is located U type spout 8, and slider 7 horizontal slip can be followed to U type spout 8. A horizontal slide 9 is upwards connected an organic whole to U type spout 8's outer panel, and slide 9 partly is located and detects 1 mesa of platform, and partly lies in and detects 1 mesa off-plate, and slide 9 blocks the outside limit of L type slip table 6 with the outer panel of U type spout 8, and slide 9 can be followed and detect 1 mesa of platform and slide. The slide 9 and the U-shaped groove thus form a structure that slides along the L-shaped slide 6. The controller 3 is fixed on the outer side of the sliding plate 9, namely, on the side outside the detection table 1, and preferably, the controller 3 is a PLC display screen controller.
Electric telescopic rods 10 are symmetrically fixed on the left side and the right side of the sliding plate 9, the upper ends of the two electric telescopic rods 10 are respectively and fixedly connected with the middle positions of the lower surfaces of the two detection plates 2, and the electric telescopic rods 10 are connected with the controller 3 and controlled by the controller 3 to move. The detection plates 2 on two sides are integrated with a digital frequency meter 4 and a laser range finder 19, wherein the digital frequency meter 4 is used for recording the action frequency of the switch, and the digital frequency meter 4 is connected with the controller 3 and transmits the recorded switch action frequency to the controller 3. The laser range finder 19 measures the distance between the detection plate 2 and the rotating shaft 13, the laser range finder 19 is connected with the controller 3, and the laser range finder 19 transmits the distance information to the controller 3.
The two detection plates 2 are symmetrically provided with a plurality of proximity switches 5 to be detected, the proximity switches 5 are uniformly and vertically arranged on the detection plates 2 to form a longitudinal column, and the distance between the upper proximity switch 5 and the lower proximity switch 5 is greater than the action distance of the proximity switches 5, so that mutual interference during detection is avoided. The uppermost proximity switch 5 of the detection plate 2 is positioned lower than the laser range finder 19.
A rack 11 is fixedly connected between the upper ends of the two detection plates 2 close to one side of the detection table 1, a gear 14 is arranged below the rack 11, and the gear 14 is matched with the rack 11 to form a transmission structure. The gear 14 is fixed on a rotating shaft 13, the rotating shaft 13 penetrates through the center of the gear 14 to be fixed with the gear 14, and the gear 14 rotates along with the rotating shaft 13. One end of the rotating shaft 13, which is far away from the proximity switch 5, is fixed with a motor shaft of the motor 12, the motor 12 is fixed on a U-shaped base 18, the U-shaped base 18 is fixed on the detection table 1, and the motor 12 is connected with the controller 3 and is controlled by the controller 3 to work. The end of the rotating shaft 13 close to one end of the proximity switch 5 is fixedly connected with a detection column 15, and the proximity switches 5 of different types are selected from the detection columns 15 made of different materials. A plurality of action pieces 16 are uniformly arranged on the periphery of the side surface of the detection column 15, the action pieces 16 are only adhered to the detection column 15, and the action pieces 16 can be iron pieces, aluminum pieces or nonmetal pieces, particularly the type of the proximity switch 5. When the gear 14 is engaged with the rack 11, the laser range finder 19 emits laser light just hitting the rotating shaft 13, and the action piece 16 on the detection column 15 does not act on the proximity switch 5, so that the proximity switch 5 is in a release state.
In order to ensure the stability of the rotation of the rotating shaft 13, the rotating shaft 13 is further supported by two supporting plates 17, the two supporting plates 17 are located between the motor 12 and the gear 14, the supporting plates 17 are fixed on the detecting table 1, circular holes are arranged on the supporting plates 17, the rotating shaft 13 penetrates through the circular holes, and the rotating shaft 13 can rotate in the circular holes.
The detection process of the invention is as follows: the starting state gear 14 is meshed with the rack 11, the rotating shaft 13 is located at the middle position of the two detection plates 2, the laser emitted by the laser range finder 19 just hits on the rotating shaft 13, and the proximity switch 5 is in a releasing state. Firstly, the controller 3 controls the motor 12 to rotate forwards, the motor 12 rotates to drive the gear 14 to rotate clockwise, the gear 14 is meshed with the rack 11 for transmission, so that the sliding plate 9 and the U-shaped sliding groove 8 slide rightwards along the L-shaped sliding table 6, when the distance measured by the laser range finder 19 on the detection plate 2 on the left side is equal to 80% of the action distance of the proximity switch 5, the controller 3 controls the motor 12 to stop rotating, then the controller 3 controls the two electric telescopic rods 10 to extend upwards until the sensing surface of the uppermost proximity switch 5 on the detection plate 2 on the left side is opposite to the detection column 15, at this time, the rack 11 is separated from the gear 14, the action piece 16 on the detection column 15 can enable the proximity switch 5 to act, then the controller 3 controls the motor 12 to work again, the motor 12 rotates to drive the detection column 15 to rotate, the digital frequency meter 4 on the detection plate 2 on the left side reads out the action frequency of the switch and transmits the action frequency to the controller 3, the detection plate 2 and the action frequency measurement are the prior art, and the description is omitted. After the detection of the action frequency of the uppermost proximity switch 5 on the left detection plate 2 is finished, the controller 3 controls the motor 12 to stop working, then controls the electric telescopic rod 10 to extend upwards until the induction surface of a second proximity switch 5 (the second from top to bottom) on the left detection plate 2 is opposite to the detection column 15, the extended length of the electric telescopic rod 10 is the distance between the adjacent proximity switches 5, then controls the motor 12 to rotate to detect the action frequency of the second proximity switch 5, repeats the steps to detect the action frequencies of a plurality of proximity switches 5 on the left detection plate 2 from top to bottom, and when the detection of the proximity switch 5 on the left detection plate 2 is finished, the controller 3 controls the electric telescopic rod 10 to contract until the gear 14 is meshed with the rack 11 again, then the motor 12 is controlled to rotate reversely, the motor 12 rotates to drive the gear 14 to rotate anticlockwise, the sliding plate 9 and the U-shaped sliding chute 8 slide leftwards along the L-shaped sliding table 6, when the distance measured by the laser range finder 19 on the detection plate 2 on the right side is equal to 80% of the action distance of the proximity switch 5, the controller 3 controls the motor 12 to stop rotating, then the controller 3 controls the two electric telescopic rods 10 to extend upwards until the sensing surface of the uppermost proximity switch 5 on the detection plate 2 on the right side is opposite to the detection column 15, at this time, the rack 11 is separated from the gear 14, the controller 3 controls the motor 12 to work again, the motor 12 rotates to drive the detection column 15 to rotate, and the action frequency of the proximity switch 5 on the detection plate 2 on the right side is sequentially measured from top to bottom in the same manner. Finally, the detected operating frequency of each proximity switch 5 may be displayed on the display screen of the controller 3.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; those of ordinary skill in the art will understand that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. The utility model provides a proximity switch action frequency detection device, is equipped with two pick-up plates (2) including examining test table (1) on examining test table (1), integrated digital frequency meter (4), laser range finder (19) on pick-up plate (2), its characterized in that: a longitudinal row of proximity switches (5) is uniformly arranged on the detection plate (2), and the distance between the upper proximity switch and the lower proximity switch (5) is greater than the action distance of the proximity switches (5); an L-shaped sliding table (6) integrally extends outwards from one side of the detection table (1), a sliding block (7) of the L-shaped sliding table (6) is downward, a U-shaped sliding groove (8) is clamped on the sliding block (7), the U-shaped sliding groove (8) can slide left and right along the sliding block (7), an outer side plate of the U-shaped sliding groove (8) is integrally connected with a horizontal sliding plate (9) upwards, one part of the sliding plate (9) is positioned on the table top of the detection table (1), and the sliding plate (9) can slide along the table top of the detection table (1); electric telescopic rods (10) are symmetrically fixed on the left side and the right side of the sliding plate (9), and the upper ends of the electric telescopic rods (10) are fixed in the middle of the lower surface of the detection plate (2); a rack (11) is fixedly connected between the upper ends of the two detection plates (2) close to one side of the detection table (1); a motor (12) is fixed on the detection table (1), a motor shaft of the motor (12) is fixedly connected with a rotating shaft (13), the rotating shaft (13) is vertical to the rack (11), a gear (14) is fixed on the rotating shaft (13), the gear (14) is positioned under the rack (11), the gear (14) is matched with the rack (11), when the gear (14) is meshed with the rack (11), laser emitted by the laser range finder (19) is shot on the rotating shaft (13), and the position of the laser range finder (19) is higher than the uppermost proximity switch (5); a detection column (15) is fixed at the front end of the rotating shaft (13), and a plurality of action pieces (16) are uniformly arranged on the periphery of the side surface of the detection column (15); the controller (3) is fixed on the outer side of the sliding plate (9), the two detection plates (2) are connected with the controller (3) through wires, and the electric telescopic rod (10) and the motor (12) are connected with the controller (3).
2. The proximity switch operation frequency detection device according to claim 1, wherein: the rotating shaft (13) is supported by a plurality of supporting plates (17), and the supporting plates (17) are fixed on the detection platform (1).
3. The proximity switch operation frequency detection device according to claim 1, wherein: the motor (12) is fixed on the detection table (1) through a U-shaped base (18).
4. The proximity switch operation frequency detection device according to claim 1, wherein: the controller (3) is a PLC display screen controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211269728.5A CN115327372B (en) | 2022-10-18 | 2022-10-18 | Proximity switch action frequency detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211269728.5A CN115327372B (en) | 2022-10-18 | 2022-10-18 | Proximity switch action frequency detection device |
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| CN115327372A CN115327372A (en) | 2022-11-11 |
| CN115327372B true CN115327372B (en) | 2023-02-17 |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3517308A (en) * | 1968-02-01 | 1970-06-23 | Mohammad Kian Mirdadian | Apparatus and method for testing electronic counting systems |
| EP0060992A2 (en) * | 1981-03-18 | 1982-09-29 | Gebhard Balluff Fabrik feinmechanischer Erzeugnisse GmbH & Co. | Testing and evaluating circuit for a proximity switch in control systems for machines |
| JPH071542U (en) * | 1993-06-16 | 1995-01-10 | 日産ディーゼル工業株式会社 | Position detection switch device |
| JPH10246732A (en) * | 1997-02-28 | 1998-09-14 | Toyoda Gosei Co Ltd | Rotation detector for rotary member |
| CN102364351A (en) * | 2011-07-01 | 2012-02-29 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Engineering machinery rotation brush performance test apparatus and method thereof |
| CN202794450U (en) * | 2012-06-05 | 2013-03-13 | 上海电器科学研究院 | Proximity-switch action frequency measurement apparatus |
| CN203324446U (en) * | 2013-07-05 | 2013-12-04 | 科瑞(苏州工业园区)工业电子有限公司 | Inductance sensor switching frequency testing device |
| CN104526694A (en) * | 2014-12-02 | 2015-04-22 | 上海航天精密机械研究所 | Coarse positioning device of mobile device |
| CN206601146U (en) * | 2017-03-25 | 2017-10-31 | 深圳市容亮电子有限公司 | A kind of detection means of inductance type transducer response frequency |
| CN206725717U (en) * | 2017-03-25 | 2017-12-08 | 深圳市容亮电子有限公司 | Inductance approach switch response frequency detection means |
| CN108008293A (en) * | 2017-11-30 | 2018-05-08 | 深圳市天工机械制造技术开发有限公司 | Close to switch test system |
| CN212030895U (en) * | 2020-05-28 | 2020-11-27 | 苏州欧蒂华电子有限公司 | Electric automation equipment switch detection device |
| CN213240257U (en) * | 2020-10-13 | 2021-05-18 | 绵阳乾龙科技有限公司 | Normal temperature proximity switch frequency response test fixture |
| CN113917325A (en) * | 2021-12-16 | 2022-01-11 | 山东天大清源信息科技有限公司 | Proximity switch detection device and detection method thereof |
| KR20220000549U (en) * | 2020-08-27 | 2022-03-08 | 주식회사 한국가스기술공사 | Solenoid Coil Behavior Checker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9551754B2 (en) * | 2015-06-05 | 2017-01-24 | Circor Aerospace, Inc. | Test device for kinetic switches and method of testing kinetic switches |
| US10345105B2 (en) * | 2017-05-31 | 2019-07-09 | The United States Of America As Represented By Secretary Of The Navy | Simplified time domain switched ring/disk resonant gyroscope |
-
2022
- 2022-10-18 CN CN202211269728.5A patent/CN115327372B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3517308A (en) * | 1968-02-01 | 1970-06-23 | Mohammad Kian Mirdadian | Apparatus and method for testing electronic counting systems |
| EP0060992A2 (en) * | 1981-03-18 | 1982-09-29 | Gebhard Balluff Fabrik feinmechanischer Erzeugnisse GmbH & Co. | Testing and evaluating circuit for a proximity switch in control systems for machines |
| JPH071542U (en) * | 1993-06-16 | 1995-01-10 | 日産ディーゼル工業株式会社 | Position detection switch device |
| JPH10246732A (en) * | 1997-02-28 | 1998-09-14 | Toyoda Gosei Co Ltd | Rotation detector for rotary member |
| CN102364351A (en) * | 2011-07-01 | 2012-02-29 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Engineering machinery rotation brush performance test apparatus and method thereof |
| CN202794450U (en) * | 2012-06-05 | 2013-03-13 | 上海电器科学研究院 | Proximity-switch action frequency measurement apparatus |
| CN203324446U (en) * | 2013-07-05 | 2013-12-04 | 科瑞(苏州工业园区)工业电子有限公司 | Inductance sensor switching frequency testing device |
| CN104526694A (en) * | 2014-12-02 | 2015-04-22 | 上海航天精密机械研究所 | Coarse positioning device of mobile device |
| CN206601146U (en) * | 2017-03-25 | 2017-10-31 | 深圳市容亮电子有限公司 | A kind of detection means of inductance type transducer response frequency |
| CN206725717U (en) * | 2017-03-25 | 2017-12-08 | 深圳市容亮电子有限公司 | Inductance approach switch response frequency detection means |
| CN108008293A (en) * | 2017-11-30 | 2018-05-08 | 深圳市天工机械制造技术开发有限公司 | Close to switch test system |
| CN212030895U (en) * | 2020-05-28 | 2020-11-27 | 苏州欧蒂华电子有限公司 | Electric automation equipment switch detection device |
| KR20220000549U (en) * | 2020-08-27 | 2022-03-08 | 주식회사 한국가스기술공사 | Solenoid Coil Behavior Checker |
| CN213240257U (en) * | 2020-10-13 | 2021-05-18 | 绵阳乾龙科技有限公司 | Normal temperature proximity switch frequency response test fixture |
| CN113917325A (en) * | 2021-12-16 | 2022-01-11 | 山东天大清源信息科技有限公司 | Proximity switch detection device and detection method thereof |
Non-Patent Citations (2)
| Title |
|---|
| Wind turbine rotor-speed detection based on the equally accurate measurement;Xiaodan Wang 等;《2012 Power Engineering and Automation Conference》;20120920;全文 * |
| 接近开关操作频率智能测试平台的研究与实现;龙林 等;《实验室研究与探索》;20140331;第33卷(第3期);全文 * |
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