CN101576428B - Method and device for detecting stamping die missed tapping - Google Patents
Method and device for detecting stamping die missed tapping Download PDFInfo
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- CN101576428B CN101576428B CN2009100333102A CN200910033310A CN101576428B CN 101576428 B CN101576428 B CN 101576428B CN 2009100333102 A CN2009100333102 A CN 2009100333102A CN 200910033310 A CN200910033310 A CN 200910033310A CN 101576428 B CN101576428 B CN 101576428B
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Abstract
The invention relates to a method and a device for detecting stamping die missed tapping, which belong to the technical field of mechanical processing. The method is characterized in that an air source of a punching machine is used and is input to a mechanical device inside a die by a pneumatic plant, and the air pressure inside the mechanical device is fed back to an electric appliance control device and then is fed back to the punching machine by the pneumatic plant so as to determine whether the punching machine works normally. The device for detecting the stamping die missed tapping is characterized by comprising the electric appliance control device of which the control end is connected with the punching machine, the input end of the electric appliance control device is provided with an air reducing valve, and a air nipple at the output feedback end of the electric appliance control device is connected into an air inlet of an insert, wherein an air pressure sensor is arranged in front of the through air nipple, the bottom end of the insert is provided with an assistant liftout attachment, a thimble is arranged on the assistant liftout attachment, and the bottom end of the thimble is positioned above the horizontal line of the air inlet. Thus, the method and the device detect a plurality of tapping holes at the same time and have good practicability.
Description
Technical field
The present invention relates to a kind of detection method and equipment, relate in particular to a kind of stamping die missed tapping detection method and equipment thereof, belong to the Machining Technology field.
Background technology
The phenomenon of stamping products tapping hole missed tapping often takes place in process of production, in case the product missed tapping flows into subsequent processing and just will cause very big waste.How to avoid the stamping products missed tapping is a difficult problem always, if can cause very big manpower waste by artificial full inspection, production efficiency is very low, and reliability is influenced by human factor also.
Adopt a kind of detection method of Purely mechanical at present, its structure is very complicated, and remolding sensitivity is lower, also may produce bad phenomenon such as scratch to product.Its embodiment is roughly as follows: the process partial schematic diagram of the existing machinery formula detection method shown in Fig. 1～Fig. 3 difference.Mould open mode partial schematic diagram shown in Figure 1, pushing block 2 is fixed on the upper bolster 1, insert 19 and cushion block 4 be fixed on the die shoe 6, briquetting 3 horizontal direction on cushion block 4 is slided, balance stem 9 can freely rotate on fixed block 12 by pin 11 pins, and under the free state, assembly A is (by thimble 5, spring 14, spring 15, push rod 13 is formed) and assembly B (by push rod 10, spring 8, under the effect of spring force plug screw 7 compositions), balance stem 9 remains balance.Visit mistake bar 18 1 ends and withstand in the groove of thimble 5 sides, the other end pushes up on the microswitch 17, and microswitch 17 is fixed on the die shoe by cushion block 16, and microswitch 17 is connected with punch press, and feeds back to punch press at any time, and punch press is just carried out the moving action that stops at any time.When the punch press matched moulds arrives certain height, in the matched moulds process, pushing block 2 promotes briquetting 3 horizontal directions by the inclined-plane and slides, and push down stamping products, in case product come by thimble 5 jack-up, after pushing block 2 was run into balance stem 9 one ends, balance stem 9 other ends will perk, force of compression by spring passes on the thimble 5, thimble will move upward, and begins tapping hole is detected, if when thimble 5 can pass tapping hole, as shown in Figure 3, thimble 5 just moves upward always, causes visiting mistake bar 18 and returns shake-up microswitch 17, feeds back to punch press by microswitch 17 then, punch press just stops action immediately, and this has just illustrated this product tapping hole missed tapping.Otherwise tapping hole is if finish tapping technology, and then punch press will continue action, return by under the effect of spring force at briquetting 3, just can carry out normal Sheet Metal Forming Technology, and punch press is normally operation also.
This mechanical detection method is applicable to detection single or the only a few tapping hole, because its structure occupation of land space is big, is not admit of so big space in the mould structure sometimes; In case punch press quits work, which tapping hole missed tapping one or two tapping hole is easy to just be found, if detect a plurality of words (structure problem is not talked earlier), has gone wrong and still need manually go to check one by one; Sensitivity is bad in addition, punch press starts, dropping to certain height just begins tapping hole is detected, in case be detected missed tapping, feed back to punch press by microswitch, this moment, punch press just quit work, and so brought very burden to production, reduce production efficiency, increased production cost simultaneously.
Summary of the invention
Purpose of the present invention is exactly in order to solve the above-mentioned problems in the prior art, and a kind of stamping die missed tapping detection method and device are provided.
Purpose of the present invention is achieved through the following technical solutions:
The stamping die missed tapping detection method, it may further comprise the steps:
Step 1., with product to be detected be placed on insert on, the tapping hole of product is over against thimble;
Step 2., the thimble bottom interior air stream drives of being inserted rises and withstands tapping hole, during this period, if thimble passes the product tapping hole, illustrates missed tapping to have occurred; If thimble does not pass the product tapping hole, illustrate that then the tapping hole tapping is normal;
3. step is controlled at atmospheric pressure value in certain scope by air reducing valve, and thimble falls after rise and restores, and finishes this detection.
Above-mentioned stamping die missed tapping detection method, wherein: described thimble specification and product standard tapping hole match.
Further, above-mentioned stamping die missed tapping detection method, wherein: described step 2. in if missed tapping occurred, gas gas leakage can appear in the venthole on the thimble, and the baroceptor demonstration is lower than relative standard pressure value, and the baroceptor pilot lamp can light alarm, simultaneously, the normal pilot lamp of electrical control gear extinguishes, and electrical control gear receives the baroceptor alarm signal, and the control punch press quits work.
Further, above-mentioned stamping die missed tapping detection method, wherein: step 2. in if tapping is normal, gas can't be revealed by the venthole on the thimble, air pressure raises; Baroceptor can show and be higher than relative standard pressure value, and the baroceptor alarm lamp extinguishes, and the normal pilot lamp of electrical control gear is lighted, the punch press operate as normal.
To detect three tapping holes simultaneously is example, if use certain air reducing valve air pressure will be transformed into stable air pressure about 15KPa, when using a proper air pressure sensor to measure, like this, be lower than 32KPa gas leakage even if measure atmospheric pressure value, that is to say porose missed tapping; Otherwise when being higher than 32KPa, just there is not the missed tapping hole, just can operate as normal.
The stamping die missed tapping checkout equipment, wherein: comprise electric apparatus control apparatus, its control end connects punch press, the gas pipe line of punch press is connected into an end of three-way connection by air reducing valve, and the other end of three-way connection connects the input end of valve, and the output terminal that connects valve is connected into the air intake opening of inserting, the feedback end of the 3rd termination connecting circuit control device of three-way connection, the bottom of inserting is provided with auxiliary liftout attachment, which is provided with thimble, and the thimble bottom is positioned on the air intake opening horizontal line.
Above-mentioned stamping die missed tapping checkout equipment, wherein: described auxiliary liftout attachment includes plug screw, and plug screw is provided with spring, and the top carrier of spring has thimble.
Further, above-mentioned stamping die missed tapping checkout equipment, wherein: described thimble is a hollow structure, and the top of thimble is provided with venthole.
Further, above-mentioned stamping die missed tapping checkout equipment, wherein: described baroceptor is provided with alarm lamp, and electrical control gear is provided with normal pilot lamp.
The outstanding substantive distinguishing features and the obvious improvement of technical solution of the present invention is mainly reflected in: utilize the source of the gas of punch press itself by air reducing valve unsettled air-flow to be converted to metastable air pressure, at the mechanical hook-up that is input to mould inside by pneumatic means, between air control unit and mechanical hook-up, baroceptor is housed, baroceptor is sensed the air pressure height of mechanical hook-up inside at any time, and feed back to electric apparatus control apparatus, feed back to punch press by pneumatic means then, determine whether operate as normal of punch press thus.The present invention can precisely detect a plurality of tapping holes simultaneously, and good practicability is arranged, and reduces production costs, and enhances productivity.Thus, expanded the space for the technical progress of this area, implementation result is good.
Description of drawings
Purpose of the present invention, advantage and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain.These embodiment only are the prominent examples of using technical solution of the present invention, and all technical schemes of taking to be equal to replacement or equivalent transformation and forming all drop within the scope of protection of present invention.In the middle of these accompanying drawings,
Fig. 1 is the mould open mode synoptic diagram of mechanical detection device;
Fig. 2 is the mould closure state synoptic diagram of mechanical detection device;
Fig. 3 is the view that the mechanical detection device detects missed tapping;
Fig. 4 is the state-detection synoptic diagram after the correct tapping of product;
Fig. 5 is the state-detection synoptic diagram behind the product missed tapping;
Fig. 6 is that stamping die missed tapping detects principle schematic.
Embodiment
The stamping die missed tapping detection method, its special feature is may further comprise the steps: at first, product to be detected 25 is placed on inserts on 27, the tapping hole of product 25 is over against thimble 26.Specifically, thimble 26 specifications and product 25 standard tapping holes match.Then, the thimble 26 bottoms air stream drives in 27 of being inserted rise and withstand tapping hole.During this period, if thimble 26 passes product 25 tapping holes, illustrate missed tapping to have occurred.On the contrary, if thimble 26 does not pass product 25 tapping holes, illustrate that then the tapping hole tapping is normal.At last, by air reducing valve atmospheric pressure value is controlled in certain scope, thimble 26 falls after rise and restores, and finishes this detection.And above-mentioned detection can be by the use of a plurality of thimbles 26, and the missed tapping that carries out a plurality of product tapping holes detects.Roughly flow process is as shown in Figure 6 for it.
Specifically: if missed tapping occurred, the venthole 24 on the thimble 26 gas gas leakage can occur owing to can not get the shutoff of product tapping hole in said process.Baroceptor 31 can detect the gas leakage state and rely on PLC program in the electric apparatus control apparatus 20 immediately, and control punch press 22 quits work.Relative, if tapping is normal, venthole 24 suffers the shutoff of product tapping hole, gas can't be revealed by the venthole on the thimble 26 24, cause the air pressure in the whole gas circuit to raise, baroceptor 31 detected air pressure states are normally evaluated, control punch press 22 operate as normal.
Smooth implementation for the ease of this stamping die missed tapping detection method, now design a kind of stamping die missed tapping checkout equipment, its unusual part is: comprise electric apparatus control apparatus 20, its control end connects punch press 22, the gas pipe line of punch press 22 is connected into an end of three-way connection 32 by air reducing valve 30, and air reducing valve 30 is to convert unsettled air pressure to metastable needed air pressure.The other end of three-way connection 32 connects the input end of valve 21, the output terminal that connects valve 21 is connected into 27 the air intake opening 23 of inserting, the feedback end of the 3rd termination connecting circuit control device 20 of three- way connection 32,27 bottoms of inserting are provided with auxiliary liftout attachment, which is provided with thimble 26, and thimble 26 bottoms are positioned on air intake opening 23 horizontal lines.And in order to allow the control personnel in time know current state, baroceptor 31 is provided with alarm lamp, and electrical control gear is provided with normal pilot lamp.
In conjunction with the present invention's one preferred implementation, described auxiliary liftout attachment includes plug screw 28, and plug screw 28 is provided with spring 29, and the top carrier of spring 29 has thimble 26.Specifically, spring 29 is in free state, does not need precompressed, its objective is to guarantee that thimble 26 does not drop to the below of inserting 27 air intake openings 23.Otherwise, can not be with thimble 26 jack-up by gas.And, detecting the missed tapping state for the ease of pick-up unit, described thimble 26 is a hollow structure, the top of thimble 26 is provided with venthole 24.Thus, can play the function of auxiliary announcement by leakage alarm.
Further, described baroceptor 31 is in order to detect the air pressure change in the gas circuit in the process that detects tapping hole at any time, baroceptor 31 is equipped with signal alarm pilot lamp (redness), and baroceptor 31 detected signals feed back to electrical control gear 20 at any time, and electrical control gear 20 also is furnished with normal signal pilot lamp (green).
During this period, detecting three tapping holes simultaneously with a baroceptor 31 is example, if use certain air reducing valve 30 air pressure will be transformed into stable air pressure about 15KPa, when using a proper air pressure sensor 31 to measure, like this, be lower than 32KPa gas leakage even if measure atmospheric pressure value.That is to say porose missed tapping, at this moment red led will light, and green indicating lamp does not just work, and punch press 22 just can not worked.Otherwise when being higher than 32KPa, just do not have the missed tapping hole, at this moment red led just can not light, and green indicating lamp is just light, and punch press 22 just can operate as normal.If when existing a plurality of baroceptors to detect a plurality of tapping hole, when having only red led all not work, green indicating lamp just can be bright, the bright punch press 22 of green indicating lamp is operate as normal; Otherwise as long as any red led is bright, green indicating lamp can be not bright, and punch press 22 is just worked never like this.
Under die opening state, place product 25 and detect.If thimble 26 can pass the tapping hole of product 25, this hole missed tapping has been described, gas will let out by the venthole 24 of thimble 26.Baroceptor 31 detects air pressure change like this, and feeds back to electrical control gear, and electrical control gear judges that current state is a missed tapping, adopts the PLC mode to control punch press 22 by electric device then and quits work, promptly as shown in Figure 5.
Otherwise, if thimble 26 can not pass the tapping hole of product 25, as shown in Figure 4, illustrating that this hole attacked silk, gas just can not leak.Thus, air pressure will raise, and electrical control gear collects the air pressure change feedback, control punch press 22 operate as normal.
Again further, standard machinery formula detection method often is applicable to the detection of the tapping hole of single or few number, is limited by its structure, even enough spaces are arranged can realize detecting, in case go wrong, can not find out which hole missed tapping soon, still to check one by one.After adopting the present invention, because there is gas leak phenomenon in missed tapping, just can detect a plurality of simultaneously, can one baroceptor 31 corresponding tapping holes, also can baroceptor 31 corresponding a plurality of tapping holes, and the detection of each tapping hole can both find out in electrical control gear at an easy rate, do not need to check one by one, and is in time controlled.
Simultaneously, this stamping die missed tapping detection method also has good reliability and sensitivity, detects in 22 startups of plain type detection method palpus punch press and the decline process, and the punch press 22 that goes wrong must shut down immediately.And this detection side rule is detecting under the die opening state fully, and punch press 22 just ran well after detection was finished.
By above-mentioned character express also in conjunction with the accompanying drawings as can be seen, after adopting the present invention, utilize the source of the gas of punch press itself to be input to the mechanical hook-up of mould inside by pneumatic means, the air pressure of mechanical hook-up inside just feeds back to electric apparatus control apparatus, feed back to punch press by pneumatic means then, determine whether operate as normal of punch press thus.Can precisely detect a plurality of tapping holes simultaneously, good practicability is arranged, reduce production costs, enhance productivity.
By above-mentioned character express also in conjunction with the accompanying drawings as can be seen, after adopting the present invention, utilize the source of the gas of punch press itself to be input to the mechanical hook-up of mould inside by pneumatic means, the air pressure of mechanical hook-up inside just feeds back to electric apparatus control apparatus, feed back to punch press by pneumatic means then, determine whether operate as normal of punch press thus.Can precisely detect a plurality of tapping holes simultaneously, good practicability is arranged, reduce production costs, enhance productivity.
Claims (6)
1. stamping die missed tapping detection method is characterized in that may further comprise the steps:
Step 1., with product to be detected be placed on insert on, the tapping hole of product is over against thimble;
Step 2., the thimble bottom interior air stream drives of being inserted rises and withstands the product tapping hole, if thimble passes the product tapping hole, illustrates missed tapping to have occurred; If thimble does not pass the product tapping hole, illustrate that then the tapping hole tapping is normal;
3. step is controlled at atmospheric pressure value in certain scope by air reducing valve, and thimble falls after rise and restores, and finishes this detection;
Described thimble specification and product standard tapping hole match.
2. stamping die missed tapping detection method according to claim 1, it is characterized in that: described step 2. in if missed tapping occurred, gas gas leakage can appear in the venthole on the thimble, the baroceptor demonstration is lower than relative standard pressure value, the baroceptor alarm lamp can light alarm, and simultaneously, the normal pilot lamp of electrical control gear extinguishes, electrical control gear receives the baroceptor alarm signal, and the control punch press quits work.
3. stamping die missed tapping detection method according to claim 1 is characterized in that: described step 2. in if tapping is normal, gas can't be revealed by the venthole on the thimble, air pressure raises; Baroceptor can show and be higher than relative standard pressure value, and the baroceptor alarm lamp extinguishes, and the normal pilot lamp of electrical control gear is lighted, the punch press operate as normal.
4. stamping die missed tapping checkout equipment, it is characterized in that: comprise electrical control gear, its control end connects punch press, the gas pipe line of punch press is connected into an end of three-way connection by air reducing valve, and the other end of three-way connection connects the input end of valve, and the output terminal that connects valve is connected into the air intake opening of inserting, the 3rd termination of three-way connection connects the feedback end of electrical control gear, the bottom of inserting is provided with auxiliary liftout attachment, which is provided with thimble, and the thimble bottom is positioned on the air intake opening horizontal line.
5. stamping die missed tapping checkout equipment according to claim 5 is characterized in that: described auxiliary liftout attachment includes plug screw, and plug screw is provided with spring, and the top carrier of spring has thimble.
6. stamping die missed tapping checkout equipment according to claim 5 is characterized in that: described thimble is a hollow structure, and the top of thimble is provided with venthole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100333102A CN101576428B (en) | 2009-06-18 | 2009-06-18 | Method and device for detecting stamping die missed tapping |
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| CN2009100333102A CN101576428B (en) | 2009-06-18 | 2009-06-18 | Method and device for detecting stamping die missed tapping |
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| CN101576428B true CN101576428B (en) | 2011-04-06 |
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| CN103203395A (en) * | 2013-03-22 | 2013-07-17 | 宁波金鼎紧固件有限公司 | Extension machine |
| CN106994479A (en) * | 2016-01-22 | 2017-08-01 | 江苏博俊工业科技股份有限公司 | Diel rushes aperture leakproof and rushes detection means |
| CN107030528A (en) * | 2016-02-04 | 2017-08-11 | 上海良笠机械电机有限公司 | Break detection device |
| CN107159742A (en) * | 2017-06-30 | 2017-09-15 | 爱驰威汽车零部件（盐城）有限公司 | A kind of detection device of auto panel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200984674Y (en) * | 2006-12-15 | 2007-12-05 | 上海飞华汽车部件有限公司 | Four-station threading machine tool with automatic detecting function |
| CN201421390Y (en) * | 2009-06-18 | 2010-03-10 | 安特(苏州)精密机械有限公司 | Detection device for missing tap of stamping die |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200984674Y (en) * | 2006-12-15 | 2007-12-05 | 上海飞华汽车部件有限公司 | Four-station threading machine tool with automatic detecting function |
| CN201421390Y (en) * | 2009-06-18 | 2010-03-10 | 安特(苏州)精密机械有限公司 | Detection device for missing tap of stamping die |
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