CN111855023A - Method and system for detecting abnormal wear condition of guide sliding surface of wedge - Google Patents
Method and system for detecting abnormal wear condition of guide sliding surface of wedge Download PDFInfo
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- CN111855023A CN111855023A CN202010848697.3A CN202010848697A CN111855023A CN 111855023 A CN111855023 A CN 111855023A CN 202010848697 A CN202010848697 A CN 202010848697A CN 111855023 A CN111855023 A CN 111855023A
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- temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/04—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a method and a system for detecting abnormal wear conditions of a guide sliding surface of a wedge, wherein the method comprises the following steps: 1) setting a temperature measuring point at or near the slide guide surface of the wedge, and measuring the temperature at the temperature measuring point in real time; 2) and judging whether the measured temperature value is abnormal, if so, generating an abnormal abrasion condition of the slide guide surface of the wedge. The system comprises a temperature sensor and a leading slide surface temperature monitoring system. According to the invention, the wedge wear condition is judged according to the temperature abnormality by detecting the temperature of the wedge guide sliding surface, so that the efficiency of checking the wedge guide sliding surface wear condition is greatly improved, and the maintenance cost is saved.
Description
Technical Field
The invention relates to a method for judging wedge abrasion, in particular to a method and a system for detecting abnormal abrasion conditions of a guide sliding surface of a wedge.
Background
The cam is the most complex and problematic mechanism for moving the mold. The wedge guiding and sliding surface is the sliding contact surface of the base and the sliding block, and is usually located on the base, the sliding block or the guiding plate. At the later stage of the stable abrasion stage, due to the reasons of rapid temperature rise or surface metal structure change and the like, the abrasion speed of the slide guide surface of the wedge is rapidly increased, the abrasion loss is rapidly increased, the working condition is deteriorated and abnormal, so that the punched product is unqualified, and the shutdown inspection is needed, thereby causing economic loss. Although the production line mold maintenance personnel can regularly check the state of the wedge, the abnormal condition of the abrasion of the guide sliding surface of the wedge is still difficult to find in advance.
Disclosure of Invention
The invention aims to provide a method and a system for detecting the abnormal wear condition of a tapered wedge guide sliding surface, which can find the abnormal wear condition in advance.
In order to achieve the purpose, the method for detecting the abnormal wear condition of the guide sliding surface of the inclined wedge, which is designed by the invention, comprises the following steps: 1) setting a temperature measuring point at or near the slide guide surface of the wedge, and measuring the temperature at the temperature measuring point in real time; 2) and judging whether the measured temperature value is abnormal, if so, generating an abnormal abrasion condition of the slide guide surface of the wedge.
Optionally, in step 2), the method for determining the temperature abnormality includes: the measured temperature value exceeds a set threshold value, which can be set according to the maximum value of the temperature under normal conditions.
Optionally, in step 2), the method for determining the temperature abnormality includes: the measured temperature value rises sharply in a short time, i.e. the rate of temperature rise exceeds a set threshold.
Preferably, the number of the temperature measuring points of each slide guiding surface is multiple, and the temperature measuring points are distributed along the length direction of the slide guiding surface of the wedge; if the temperature at any temperature measuring point is abnormal, the abnormal abrasion condition of the sliding guide surface occurs. The temperature of different positions of the guide sliding surface can be monitored by arranging a plurality of measuring points, so that the abrasion condition can be judged more comprehensively, and local abrasion can be found better; and meanwhile, mutual backup is realized, and temperature abnormity can be found in time when partial temperature sensors have faults.
The invention also provides a system for detecting the abnormal wear condition of the guide sliding surface of the wedge, which comprises the following components: the temperature sensor is used for measuring the temperature of the wedge guide sliding surface or a temperature measuring point near the guide sliding surface and transmitting a measured temperature signal to the guide sliding surface temperature monitoring system; and the guide sliding surface temperature monitoring system is used for receiving the temperature signal of the temperature sensor, processing and displaying the temperature signal.
Preferably, the leading slide surface temperature monitoring system includes: the signal receiving module is used for receiving a temperature signal measured by the temperature sensor; the calculation analysis module is used for recording and analyzing the temperature signal, generating a temperature-time curve graph, judging temperature change and further judging whether the wear condition of the slide guide surface of the wedge is abnormal or not; the display module is used for displaying the temperature and temperature-time curve chart and displaying abnormal information; and the user input module is used for inputting a threshold value required by temperature abnormity judgment and inquiring the temperature history information.
Preferably, the temperature measuring point is positioned on a base, a sliding block or a guide plate of the wedge and should be arranged as close as possible to the slide guiding surface so as to reflect the actual temperature of the slide guiding surface of the wedge as truly and rapidly as possible.
Preferably, the temperature sensor is provided with a wireless transmitting module, and can transmit the measured temperature signal to the sliding surface temperature monitoring system through a wireless signal.
Preferably, the number of the temperature sensors is multiple, and the temperature measurement can be simultaneously performed on multiple temperature measurement points on one or more wedges; the sliding surface temperature monitoring system is provided with a plurality of signal channels, and can receive temperature signals of a plurality of wireless sensors, process and display the temperature signals.
Preferably, the temperature sensor is in a contact type, and a temperature measuring probe of the temperature sensor is arranged at a temperature measuring point of the wedge; or the temperature sensor is in a non-contact type, and the temperature measuring point of the temperature sensor is aligned with the temperature measuring point of the wedge.
Compared with the prior art, the invention has the beneficial effects that:
1) according to the method, the temperature of the slide guiding surface of the wedge is detected by utilizing the characteristic that the temperature of the slide guiding surface is rapidly increased at the later stage of the stable abrasion stage and when the slide guiding surface enters the severe abrasion stage, so that the abrasion condition of the wedge is judged, and the method is simple, fast, good in real-time performance, high in sensitivity and reliability;
2) the invention can judge the abrasion state of the slide guide surface of the wedge, provide information for a die maintainer, so as to maintain the wedge in advance, replace the seriously abraded wedge guide plate or wedge in time, ensure that the wedge on a production line works in a normal state, reduce the influence of the wedge damage on stamping production and realize the defect-free production of stamping;
3) the invention can monitor a plurality of wedges on a plurality of sets of dies simultaneously, greatly improves the efficiency of checking the wear condition of the guide sliding surface of the wedge, saves the maintenance cost and reduces the economic loss caused by shutdown inspection and unqualified products.
Drawings
Fig. 1 is a schematic structural diagram of a system for detecting an abnormal wear condition of a guide sliding surface of a tapered wedge according to the present invention.
Fig. 2 is a schematic view of the installation position of the temperature sensor (cross-sectional view of the wedge a-a in fig. 1).
Wherein: wedge 1, temperature sensor 2, guide plate 3, wireless transmitting module 4, calculation analysis module 5, signal receiving module 6, display module 7 and user input module 8
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1 to 2, the present embodiment first provides a system for detecting an abnormal wear condition of a slide guiding surface of a wedge, which includes a temperature sensor 2 and a system for monitoring a temperature of the slide guiding surface. Wherein:
the guide plate 3 of the wedge is transversely provided with a measuring hole as a temperature measuring point.
The temperature sensor 2 is a platinum resistance temperature sensor, and a temperature measuring probe of the platinum resistance temperature sensor is inserted into a measuring hole in the guide plate 3 from the side surface.
The temperature sensor 2 is provided with a wireless transmitting module 4, the signal transmission distance of the wireless transmitting module can reach 200-500 m, and the measured temperature signal can be transmitted to the sliding surface temperature monitoring system through a wireless signal.
The system for monitoring the temperature of the guide sliding surface comprises a signal receiving module 6, a calculation and analysis module 5, a display module 7 and a user input module 8.
The signal receiving module 6 receives the temperature signal measured by the temperature sensor 2 in a wireless connection mode.
And the calculation analysis module 5 records and analyzes the temperature signal to generate a temperature-time curve graph, judges the temperature change and further judges whether the wear condition of the slide guide surface of the wedge is abnormal.
The display module 7 displays the measured temperature and the temperature-time curve graph in real time and gives an alarm for displaying an abnormal state.
The user input module 8 is used for receiving user input, including but not limited to: inputting a threshold value required for judging temperature abnormality, inquiring temperature history information, and the like.
The slide guide surface temperature monitoring system is provided with a plurality of signal channels (up to 200) and can be simultaneously accessed and used for processing the temperature signals of a plurality of temperature sensors, so that a plurality of wedges on a plurality of sets of dies on one production line can be conveniently monitored.
The embodiment also provides a method for detecting the abnormal wear condition of the guide sliding surface of the wedge by using the detection system, which comprises the following steps:
1) setting a temperature measuring point on the guide sliding surface of the wedge 1 or the vicinity thereof, and measuring the temperature at the temperature measuring point in real time;
2) and judging whether the measured temperature value is abnormal, if so, generating an abnormal abrasion condition of the slide guide surface of the wedge.
In this embodiment, the method for determining the temperature abnormality includes: the measured temperature value exceeds a set threshold value set to the maximum value of the temperature under normal conditions (plus an offset value if necessary). In another embodiment, the method for determining the temperature abnormality comprises: the measured temperature value rises sharply in a short time, i.e. the rate of temperature rise exceeds a set threshold.
The number of temperature measuring points of each slide guiding surface is one (such as fig. 1 and 2) or more (the same wedge may have a plurality of slide guiding surfaces); when the number of the temperature measuring points is multiple, the temperature measuring points are uniformly distributed along the length direction of the sliding guide surface; if the temperature at any temperature measuring point is abnormal, the abnormal abrasion condition of the sliding guide surface occurs. The temperature of different positions of the guide sliding surface can be monitored by arranging a plurality of measuring points, so that the abrasion condition of the wedge 1 can be judged more comprehensively, and the local abrasion condition can be found better; meanwhile, mutual backup is realized, and temperature abnormity can be found in time when partial sensors have faults.
Claims (10)
1. A method for detecting the abnormal abrasion condition of a guide sliding surface of a tapered wedge is characterized by comprising the following steps:
the method comprises the following steps:
1) setting a temperature measuring point on or near the slide guiding surface of the wedge, and measuring the temperature at the temperature measuring point in real time;
2) and judging whether the measured temperature value is abnormal, if so, generating an abnormal abrasion condition of the slide guide surface of the wedge.
2. The method for detecting an abnormal wear condition of a slide guide surface of a tapered wedge according to claim 1, wherein: in the step 2), the method for judging the temperature abnormality comprises the following steps: the measured temperature value exceeds a set threshold value.
3. The method for detecting an abnormal wear condition of a slide guide surface of a tapered wedge according to claim 1, wherein: in the step 2), the method for judging the temperature abnormality comprises the following steps: the measured temperature value rises sharply in a short time, i.e. the rate of temperature rise exceeds a set threshold.
4. The method for detecting an abnormal wear condition of a slide wedge guide sliding surface according to any one of claims 1 to 3, wherein: the number of the temperature measuring points of each slide guiding surface is multiple, and the temperature measuring points are distributed along the length direction of the slide guiding surface of the wedge; if the temperature at any temperature measuring point is abnormal, the abnormal abrasion condition of the sliding guide surface occurs.
5. A tapered wedge guide sliding surface abrasion abnormal condition detection system specially designed for realizing the detection method of any one of claims 1-4, which is characterized in that: the detection system includes:
the temperature sensor (2) is used for measuring the temperature of the wedge guide sliding surface or a temperature measuring point near the guide sliding surface and transmitting a measured temperature signal to the guide sliding surface temperature monitoring system;
and the guide sliding surface temperature monitoring system is used for receiving the temperature signal of the temperature sensor (2), and processing and displaying the temperature signal.
6. The system for detecting an abnormal wear condition of a slide guide surface of a cam according to claim 5, wherein: leading sliding surface temperature monitoring system includes:
the signal receiving module (6) is used for receiving the temperature signal measured by the temperature sensor (2);
the calculation analysis module (5) is used for recording and analyzing the temperature signal, generating a temperature-time curve graph, judging temperature change and further judging whether the wear condition of the slide guide surface of the wedge is abnormal or not;
the display module (7) is used for displaying temperature and a temperature-time curve graph and displaying abnormal information;
and the user input module (8) is used for inputting a threshold value required by temperature abnormity judgment and inquiring temperature history information.
7. The system for detecting an abnormal wear condition of a slide guide surface of a cam according to claim 5, wherein: the temperature measuring point is positioned on a base, a sliding block or a guide plate (3) of the wedge (1) and is close to the sliding guide surface.
8. The system for detecting an abnormal wear condition of a slide guide surface of a cam according to claim 5, wherein: the temperature sensor (2) is provided with a wireless transmitting module (4) which can transmit a measured temperature signal to the sliding surface temperature monitoring system through a wireless signal.
9. The system for detecting the abnormal wear condition of the tapered wedge sliding guide surface according to any one of claims 5 to 8, wherein: the number of the temperature sensors (2) is multiple, and a plurality of temperature measuring points on one or more wedges (1) can be measured at the same time; the sliding surface temperature monitoring system is provided with a plurality of signal channels, and can receive temperature signals of a plurality of wireless sensors, process and display the temperature signals.
10. The system for detecting the abnormal wear condition of the tapered wedge sliding guide surface according to any one of claims 5 to 8, wherein: the temperature sensor (2) is in a contact type, and a temperature measuring probe of the temperature sensor is arranged at a temperature measuring point of the wedge (1); or the temperature sensor (2) is in a non-contact type, and the temperature measuring point of the temperature sensor is aligned with the temperature measuring point of the wedge (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010848697.3A CN111855023A (en) | 2020-08-21 | 2020-08-21 | Method and system for detecting abnormal wear condition of guide sliding surface of wedge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010848697.3A CN111855023A (en) | 2020-08-21 | 2020-08-21 | Method and system for detecting abnormal wear condition of guide sliding surface of wedge |
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| CN111855023A true CN111855023A (en) | 2020-10-30 |
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| CN202010848697.3A Pending CN111855023A (en) | 2020-08-21 | 2020-08-21 | Method and system for detecting abnormal wear condition of guide sliding surface of wedge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211107A (en) * | 2021-12-30 | 2022-03-22 | 北京知信浩宇科技有限公司 | Welding management method and system |
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| CN106289768A (en) * | 2016-09-20 | 2017-01-04 | 山东博特精工股份有限公司 | Leading screw, guide rail application system simulated condition laboratory table |
| CN208316524U (en) * | 2018-06-21 | 2019-01-01 | 贵州黔源电力股份有限公司普定发电公司 | generator slip ring temperature monitoring system |
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2020
- 2020-08-21 CN CN202010848697.3A patent/CN111855023A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6276495B1 (en) * | 2000-03-17 | 2001-08-21 | Meritor Heavy Vehicle Systems, Llc | Brake temperature monitor using heat pipe |
| CN104897296A (en) * | 2015-06-13 | 2015-09-09 | 广东工业大学 | Temperature detection device of polishing interface and utilization of temperature signals in chemically mechanical polishing process |
| CN104949835A (en) * | 2015-07-14 | 2015-09-30 | 北京信息科技大学 | System and method for measuring temperature of friction pair of wet clutch |
| CN105351411A (en) * | 2015-11-11 | 2016-02-24 | 成都九十度工业产品设计有限公司 | Intelligent control system and method for brake block combination on brake |
| CN106289768A (en) * | 2016-09-20 | 2017-01-04 | 山东博特精工股份有限公司 | Leading screw, guide rail application system simulated condition laboratory table |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114211107A (en) * | 2021-12-30 | 2022-03-22 | 北京知信浩宇科技有限公司 | Welding management method and system |
| CN114211107B (en) * | 2021-12-30 | 2023-03-10 | 北京知信浩宇科技有限公司 | Welding management method and system |
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