CN104075672A - Device and method for inspecting size of cylindrical object - Google Patents
Device and method for inspecting size of cylindrical object Download PDFInfo
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- CN104075672A CN104075672A CN201410125965.3A CN201410125965A CN104075672A CN 104075672 A CN104075672 A CN 104075672A CN 201410125965 A CN201410125965 A CN 201410125965A CN 104075672 A CN104075672 A CN 104075672A
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Abstract
The objective of the invention lies in providing a device and method for inspecting the size of a cylindrical object, and the device and method can enable the size of the internal periphery of the cylindrical object, which is small in wall thickness and is liable to deform, to be inspected in a short time and at a high precision. The device is provided with a measurement nozzle, and the measurement nozzle can be inserted at the internal periphery of the cylindrical object and is provided with an external peripheral surface opposite to the internal peripheral surface of the cylindrical object. Moreover, the interior of the measurement nozzle is provided with an air flowing path which enables air-blowing outlets communicated with the air flowing path to be disposed on the external peripheral surface. The device is also provided with an adjuster which is used for adjusting the pressure of compressed air supplied by an air compression source. The device is also provided with an air flow detection unit which is used for detecting the quantity of flow of air which is blown from the air-blowing outlets to the internal peripheral surface of the cylindrical object, wherein the pressure of the air is adjusted by the adjuster. The number of the air-blowing outlets is greater than six, and the air-blowing outlets are arranged at intervals at the same periphery of the external periphery of the measurement nozzle.
Description
Technical field
The present invention relates to the dimensional inspection device of drum thing and used the dimension inspection method of the drum thing of this device.The present invention be more particularly directed to for carrying out wall thickness with high precision compared with the dimensional inspection device of the dimension inspection of the inner peripheral surface of thin and easily deformable drum thing and having used the dimension inspection method of this device.
Background technology
When the inner peripheral surface size with high-precision measuring drum thing, exist and for example make contact analyzer contact to measure method this inner peripheral surface size, that conventionally use cylinder gauge with the inner peripheral surface of this drum thing.But, in the situation that measure with this contact analyzer the wall thickness that is inserted in the such drum thing of the cylinder sleeve of automobile engine cylinder-body, be the internal diameter of the object that approximately 2～3mm is thinner like this, when measuring, may make the shape of this drum thing change or damage the inner peripheral surface of this drum thing.
Therefore, in high precision and while checking in short time wall thickness compared with the inner peripheral surface size of thin and easily deformable drum thing, used contactless air micrometer of measuring with the flow of air dimension of object etc. in the past.At this, as wall thickness compared with thin and easily deformable drum thing, lifting internal combustion engine cylinder sleeve is example, below, to the internal combustion engine for checking employing in the past by the dimensional inspection device of the inner peripheral surface size of cylinder sleeve and used the dimension inspection method of this device to describe.
Fig. 3 be for illustrate an existing embodiment drum thing dimensional inspection device and used the skeleton diagram of dimension inspection method of the drum thing of this device.Fig. 3 represents particularly in the situation that the dimensional inspection device of using internal combustion engine to use as the drum thing 20 that checks object with cylinder sleeve in the past.Dimensional inspection device 50 shown in Fig. 3 is for offering the air of supplying with from air voltage source (not shown) structure of measuring with nozzle 51 via regulator (not shown), according to checking the inner peripheral surface size of cylinder sleeve 20 for the internal combustion engine of object by being located at the detected air stream value of flowmeter 59 between nozzle 51 for this regulator and this mensuration, can checking to become.In addition, Fig. 3 (a) dissects along B-B line the cut-open view of measuring with nozzle 51 gained in Fig. 3.As shown in Fig. 3 (a), in existing dimensional inspection device 50, be located in the Air blowing mouth 52(figure measuring with nozzle 51 and represented by stain) be located to measure the position with 180 ° of along the circumferential direction separation centered by the axle of nozzle 51.
Used in the dimension inspection method of inner peripheral surface of drum thing of the existing dimensional inspection device 50 shown in Fig. 3, when checking that internal combustion engine is used the inner peripheral surface size of cylinder sleeve 20, first the mensuration of cylindrical shape is inserted in to the interior week that this internal combustion engine is used cylinder sleeve 20 with nozzle 51.This mensuration disposes Air blowing mouth 52 with nozzle 51 in its both sides, this Air blowing mouth 52 is configured on the same circumference of measuring by the periphery of nozzle 51 to two and on the length direction with nozzle 51, configure 3 grades in this mensuration.In the past, the mensuration of cylindrical shape is as shown in Figure 3 being inserted in to this internal combustion engine with nozzle 51 with after the interior week of cylinder sleeve 20, from being disposed at this mensuration, with the Air blowing mouth 52 of the both sides of nozzle 51, blow out by the air regulator pressure regulation, and the air stream value being detected now by flowmeter 59.At this, at use traffic meter 59 as air mass flow detecting unit in the situation that, and the variation of the height and position that the variation of this mensuration air mass flow that accompany with the variation of the gap value between cylinder sleeve 20, that blow out with nozzle 51 from this mensuration with nozzle 51 and this internal combustion engine is floated by buoy represents, thereby can carry out the detection of air stream value.
And, in the dimension inspection method of drum thing inner peripheral surface of having used the existing dimensional inspection device 50 shown in Fig. 3, to the drum master ring (not shown) that possesses the inner peripheral surface of the internal diameter size suitable with the tolerance higher limit of the internal diameter size of this drum thing of predetermining, insert and measure with nozzle 51, and the air stream value representing in flowmeter now 59 is made as to the reference value of the tolerance upper limit.In addition, to the drum master ring (not shown) that possesses the inner peripheral surface of the internal diameter size suitable with the lower variation of tolerance value of the internal diameter size of this drum thing of predetermining, insert and measure with nozzle 51, and the air stream value representing in flowmeter now 59 is made as to the reference value of lower variation of tolerance.Then, in the dimension inspection method of existing drum thing, to the internal combustion engine that becomes inspection object, with inserting in interior week of cylinder sleeve 20, measure and use nozzle 51, the air stream value representing in flowmeter now 59 and the reference value of being set by drum master ring are compared, if it is qualified to be judged to be within the scope of reference value, if depart from reference value scope, be judged to be defective.
Summary of the invention
But, the precision that internal combustion engine is had relatively high expectations with the dimension inspection of the inner peripheral surface of cylinder sleeve 20, therefore, in existing dimensional inspection device 50 and used in the dimension inspection method of this device, complete cycle about internal combustion engine with the inner peripheral surface of cylinder sleeve 20, confirming as size in margin tolerance time, need to make with cylinder sleeve 20, be installed on the variation of rotating and confirm air mass flow under the state of mensuration by the periphery of nozzle 51 as the internal combustion engine that checks object.Particularly as existing dimensional inspection device 50, in the situation that use Air blowing mouth 52 to be disposed to measure, with the device of nozzle 51 both sides, carry out dimension inspection, suppose that internal combustion engine exists the situation of major diameter and minor axis etc. with the section deformation ovalization shape of cylinder sleeve 20, must obtain as far as possible the air stream value of the complete cycle of cylinder sleeve 20 inner peripheral surfaces for internal combustion engine, calculate the mean value of resulting air stream value, and determine whether qualified.
So, when carrying out wall thickness compared with the dimension inspection of thin and easily deformable drum thing (cylinder sleeve etc. for internal combustion engine) 20 inner peripheral surfaces with high precision, in the situation that utilize existing dimensional inspection device 50 and used the dimension inspection method of this device, must make this cylindrical shape thing 20 be installed on measure with each predetermined angular of state of nozzle 51 peripheries rotate, and cause checking the increase of process number.In addition, when making this cylindrical shape thing 20 measure to be installed on the state rotation of using nozzle 51 peripheries, Yi Bian Yi Bian be difficult to rotate and measure at a certain angle, therefore, generation cannot be carried out with high precision the problem of the dimension inspection of these cylindrical shape thing 20 inner peripheral surfaces.In addition, this cylindrical shape thing 20 is installed on measure when rotating after nozzle 51 peripheries, to produce the problems such as inner peripheral surface of damaging this cylindrical shape thing 20.
The present invention is conceived to this existing issue and makes, and its object is, providing can the short time and check accurately wall thickness compared with the dimensional inspection device of the inner peripheral surface size of thin and easily deformable drum thing and used the dimension inspection method of this device.
Therefore, the inventor etc. have carried out wholwe-hearted research, consequently, in dimensional inspection device, use air micrometer, and by being located at the mensuration that dimensional inspection device possesses, with the Air blowing mouth of nozzle, in this mensuration, on the same circumference by nozzle periphery, configure dividually predetermined number, solved thus above-mentioned problem.Below, the present invention will be described.
The invention provides a kind of dimensional inspection device of drum thing: the dimensional inspection device of drum thing of the present invention checks the inner peripheral surface size of drum thing, the dimensional inspection device of described drum thing is characterised in that, this dimensional inspection device possesses: mensuration nozzle, can be inserted in the interior week of this drum thing, and there is the outer peripheral face relative with the inner peripheral surface of this drum thing, and in inside, be provided with air flow circuit, the Air blowing mouth being communicated with this air flow circuit is located to this outer peripheral face; Regulator, carries out pressure regulation to the pressurized air of supplying with from air voltage source; And air mass flow detecting unit, the inner peripheral surface detecting from this Air blowing mouth to this drum thing blows out the air mass flow by the air this regulator pressure regulation, and this Air blowing mouth configures more than 6 on the same circumference by nozzle periphery dividually in this mensuration.
In addition, in the dimensional inspection device of drum thing of the present invention, be preferably, measure described in described Air blowing opening's edge with the length direction configuration of nozzle multistage.
In addition, in the dimensional inspection device of drum thing of the present invention, be preferably, described mensuration forms slot part with nozzle on the same circumference of its periphery, the air outlet that is provided with described Air blowing mouth in the bottom surface of this slot part and overflows for the air that makes to blow out in this slot part, at this Air blowing mouth, Air blowing nozzle is installed, this Air blowing has not from outstanding size in this slot part with nozzle.
In addition, in the dimensional inspection device of drum thing of the present invention, be preferably, described mensuration easily possesses the guide part of along with the side towards this drum thing the inserted truncated cone shape of undergauge at its leading section in order to make to check the insertion of the drum thing of object with nozzle.
In addition, in the dimensional inspection device of drum thing of the present invention, be preferably, described guide part consists of resin material or soft metal.
The invention provides a kind of dimension inspection method of drum thing: the dimension inspection method of drum thing of the present invention has been used the dimensional inspection device of above-mentioned drum thing, the dimension inspection method of described drum thing is characterised in that, in the dimension inspection method of this drum thing, the tolerance higher limit that possesses the inner peripheral surface of the internal diameter size suitable with the tolerance higher limit of the internal diameter size of this drum thing is installed and is disposed at the periphery of nozzle for described mensuration with drum master ring, by described air mass flow detecting unit, detect the air stream value while this tolerance higher limit being blown out to the air pressure regulation with the inner peripheral surface of drum master ring from described Air blowing mouth, obtain the air stream value corresponding with the tolerance higher limit of the internal diameter size of this drum thing, and the lower variation of tolerance value that possesses the inner peripheral surface of the internal diameter size suitable with the lower variation of tolerance value of the internal diameter size of this drum thing is installed to the periphery that is disposed at this mensurations use nozzle with drum master ring, by described air mass flow detecting unit, detect the air stream value while this lower variation of tolerance value being blown out to the air pressure regulation with the inner peripheral surface of drum master ring from this Air blowing mouth, obtain the air stream value corresponding with the lower variation of tolerance value of the internal diameter size of this drum thing, then, the drum thing that checks object is installed and is disposed at the periphery of nozzle for this mensuration, by this air mass flow detecting unit, detect the air stream value when this Air blowing mouth blows out the air pressure regulation to the inner peripheral surface of this drum thing, and judge that air stream value is now whether in the scope of the tolerance higher limit in the internal diameter size with this drum thing and air stream value corresponding to lower variation of tolerance value.
According to dimensional inspection device of the present invention and used the dimension inspection method of this device, even if the drum thing that does not make to check object rotates being installed under the state of measuring by nozzle periphery, also can high precision and keep high repeatability and check the inner peripheral surface size of this drum thing.In addition, according to dimensional inspection device of the present invention and used the dimension inspection method of this device, can the short time and do not damage this drum thing and check as the inner peripheral surface size that checks the drum thing of object.
Accompanying drawing explanation
Fig. 1 be for illustrate one embodiment of the present invention drum thing dimensional inspection device and used the skeleton diagram of dimension inspection method of the drum thing of this device.
Fig. 2 is the figure with nozzle for the mensuration shown in key diagram 1.
Fig. 3 be for illustrate an existing embodiment drum thing dimensional inspection device and used the skeleton diagram of dimension inspection method of the drum thing of this device.
Description of reference numerals
The dimensional inspection device of 1 drum thing
2 mensuration nozzles
3 Air blowing mouths
4 air outlets
5 slot parts
6 guide parts
7 retainers
8 bases
9 support columns
10 connectors
Embodiment
Below, use accompanying drawing to represent and illustrate in greater detail the dimensional inspection device of drum thing of the present invention and used the preferred implementation of dimension inspection method of the drum thing of this device.
Fig. 1 be for illustrate one embodiment of the present invention drum thing dimensional inspection device and used the skeleton diagram of dimension inspection method of the drum thing of this device.In addition, Fig. 2 is the figure with nozzle for the mensuration shown in key diagram 1.
The dimensional inspection device of drum thing of the present invention: the dimensional inspection device 1 of drum thing of the present invention checks the inner peripheral surface size of drum thing 20.In addition, the dimensional inspection device 1 of drum thing of the present invention possesses: measure with nozzle 2, can be inserted in the interior week of this drum thing 20, and there is the outer peripheral face relative with the inner peripheral surface of this drum thing 20, and in inside, be provided with air flow circuit, the Air blowing mouth 3 being communicated with this air flow circuit is located to this outer peripheral face; Regulator (not shown), carries out pressure regulation to the pressurized air of supplying with from air voltage source (not shown); And air mass flow detecting unit 12, the inner peripheral surface detecting from this Air blowing mouth 3 to this drum thing 20 blows out the air mass flow by the air this regulator pressure regulation.And the dimensional inspection device 1 of drum thing of the present invention is characterised in that, this Air blowing mouth 3 configures more than 6 on the same circumference by nozzle 2 peripheries dividually in this mensuration.
So, the dimensional inspection device 1 of drum thing of the present invention forms with nozzle 2, regulator and air mass flow detecting unit by measuring, thereby can check the size of drum thing 20 inner peripheral surfaces.At this, as shown in Figures 1 and 2, this mensuration is fixed on the distolateral of the pillar 9 that generally perpendicularly erects with base 8 and be fixed in the length direction mode parallel with base 8 bottom surfaces with nozzle 2.In addition, this mensuration with nozzle 2, be provided for checking becoming with the end of the fixing side of this pillar 9 retainer 7 that the drum thing 20 of object positions.The dimensional inspection device 1 of drum thing of the present invention by this, measure with the periphery of nozzle 2 insert check object drum thing 20 until with these retainer 7 butts, can in same position, carry out all the time the dimension inspection of the inner peripheral surface of this drum thing 20, the inspection that can keep thus, high repeatability.
In addition, in Fig. 1, as air mass flow detecting unit 12, show flowmeter.The dimensional inspection device 1 of drum thing of the present invention possesses the air of supplying with from air voltage source to offer via this air adjustment is made into the regulator of certain pressure measures the structure of using nozzle 2, makes the air after pressure regulation be used the inside of nozzle 2 and be blown out pressure regulation to outside by mensuration.Now, can utilize and be located at this regulator and this mensuration and detect according to this mensurations with nozzle 2 and be installed on the air mass flow that this mensuration changes with the gap value between the drum thing 20 of the inspection object of nozzle 2 peripheries with the flowmeter 12 between nozzle 2, and based on this detected air stream value, check the size of drum thing 20 inner peripheral surfaces that become inspection object.In addition, below, to having used the dimension inspection method of drum thing of the dimensional inspection device 1 of drum thing of the present invention to be described in detail.
In Fig. 1, between flowmeter 12 and pillar 9, show air supply road 11.This air supply road 11 is by being connected with example connector 10 as shown in Figure 2, and is connected to and the air flow circuit of being located at this mensuration each Air blowing mouth 3 with nozzle 2 and communicating.At this, air the pressure regulation of supplying with nozzle 2 to this mensuration via regulator from air voltage source via with each Air blowing mouth 3 corresponding flowmeter 12 and be transported to this nozzle 2 for mensurations respectively, thereby can determine the position of the reason that the size of drum thing 20 inner peripheral surfaces that become conduct inspection object is bad.
Fig. 1 (a) dissects along A-A line the cut-open view of measuring with nozzle 2 gained in Fig. 1.Fig. 1 (a) represents, in the dimensional inspection device 1 of drum thing of the present invention, is located in the Air blowing mouth 3(figure measuring with nozzle 2 and is represented by stain) configure dividually 6 on same circumference in this mensuration by the periphery of nozzle.So, the dimensional inspection device 1 of drum thing of the present invention is by forming cylindric and more than 6 Air blowing mouths 3 is set on the same circumference by nozzle 2 peripheries dividually in this mensuration measuring with nozzle 2, even if do not make the drum thing 20 that checks object be installed on this mensuration with checking while rotating under the state of nozzle, also can the short time and check accurately the inner peripheral surface size of this drum thing 20.
At this, be located at mensuration of the present invention with the Air blowing mouth 3 of nozzle 2 in this mensurations with on the same circumference of nozzle 2 peripheries, equally spaced 6 of alignment arrangements are above for preferred.Fig. 1 (a) represents, in the dimensional inspection device 1 of drum thing of the present invention, is located to measure with the Air blowing mouth 3 of nozzle 2 and is located at the position with 60 ° of along the circumferential direction separation centered by the axle of nozzle 2 by this mensuration.So, the dimensional inspection device 1 of drum thing of the present invention is by being located at the Air blowing mouth 3 measured with nozzle 2 alignment arrangements more than 6 equally spaced on the same circumference of these mensurations use nozzle 2 peripheries, even if do not make the drum thing 20 that checks object be installed on this mensuration with checking while rotating under the state of nozzle 2, also can the short time and check more accurately the inner peripheral surface size of this drum thing 20.
In addition, be located at mensuration of the present invention with the Air blowing mouth 3 of nozzle 2 in this mensuration, on the same circumference by nozzle 2 peripheries, be disposed at take this mensuration with centered by axle of nozzle 2 and point-symmetric position for preferred.Fig. 1 (a) represents, in the dimensional inspection device 1 of drum thing of the present invention, be located to measure with the Air blowing mouth 3 of nozzle 2 and take two as a pair of this mensuration that is disposed at is with on the same circumference of nozzle 2 peripheries and on the same straight line with the axle of nozzle 2 by this mensuration.In the dimensional inspection device 1 of drum thing of the present invention, from being easy to form, lead to the air flow circuit of this Air blowing mouth 3 and the viewpoint of manufacturing, this mensurations with on the same circumference of nozzle 2 peripheries, this Air blowing mouth 3 is disposed at take this mensuration with the axle of nozzle 2 centered by and point-symmetric position and total arrange 6 or 8 as preferred.In addition, if in view of in the situation that for the quantity of this Air blowing mouth 3 of air supply amount of regulation, increased, with the high precision int of machining shape and the increase of processing cost that the microminiaturization in aperture accompanies, be located at mensuration of the present invention and in this mensuration, on the same circumference by nozzle 2 peripheries, arrange 6 more preferably with the Air blowing mouth 3 of nozzle 2.
In addition, in the dimensional inspection device 1 of drum thing of the present invention, in the situation that be located at, measure by 6 of Air blowing mouth 3 less thaies on the same circumference of nozzle 2 peripheries, if do not make, check that the drum thing 20 of object, being installed on this mensuration with checking while rotating under the state of nozzle, cannot check the inner peripheral surface size of this drum thing 20 accurately.Therefore, in this case, cannot become at short notice the dimension inspection of the inner peripheral surface of the drum thing 20 that checks object, and in Inspection, damage the risk increase of the inner peripheral surface of this drum thing 20, so not preferred.Incidentally, in the present invention said high-precision dimension inspection take internal diameter as the internal combustion engine that 80mm～200mm left and right, thickness of slab are 0.3mm～25mm left and right, the dimensional accuracy (tolerance) that requires is 10 μ m～50 μ m left and right by the inspection precision of cylinder sleeve, be benchmark.
In addition, in the dimensional inspection device 1 of drum thing of the present invention, it is preferred that Air blowing mouth 3 uses the length direction of nozzle 2 to configure multistage along mensuration.
Fig. 1 and Fig. 2 represent, in the dimensional inspection device 1 of drum thing of the present invention, Air blowing mouth 3 is along near near 3 grades of the length direction configurations (both ends and pars intermedia) of measuring with nozzle 2.The dimensional inspection device 1 of drum thing of the present invention is by measuring with possessing Air blowing mouth 3 on nozzle 2 with this being configured in, even if make not move with the length direction of nozzle 2 along this mensuration after with nozzle 2 being installed on this mensuration as the drum thing 20 that checks object, also can the short time and check accurately the size in the roughly whole region of these drum thing 20 inner peripheral surfaces.In addition, if in view of in the situation that for the quantity of this Air blowing mouth 3 of air supply amount of regulation, increased, with the high precision int of machining shape and the increase of processing cost that the microminiaturization in aperture accompanies, be located at mensuration of the present invention and along this mensurations, with the length direction of nozzle 2, configure 2～5 grades more preferably with the Air blowing mouth 3 of nozzle 2.
In addition, in the dimensional inspection device 1 of drum thing of the present invention, be preferably, measure and on the same circumference of its periphery, form slot part 5 with nozzle 2, the air outlet 4 that is provided with Air blowing mouth 3 and overflows for the air that makes to blow out in this slot part on the bottom surface of this slot part 5, has installed and has had not from outstanding big or small nozzle for Air blowing (not shown) in this slot part at this Air blowing mouth 3.
As shown in Figures 1 and 2, at nozzle 2 for mensuration of the present invention, on the same circumference at the allocation position that has comprised Air blowing mouth 3 in interior periphery, be formed with slot part 5.Mensuration of the present invention is such shape with nozzle 2, thereby the air blowing out from Air blowing mouth 3 spreads all over the whole region of slot part 5, even there is microdeformation in the part that becomes drum thing 20 inner peripheral surfaces that check object, also can detect exactly, can check more accurately the inner peripheral surface size of this drum thing 20.
In addition, the air outlet 4 that mensuration of the present invention is provided for making the air that blows out in this slot part to overflow with the bottom surface of nozzle 2 formed slot part 5 on the same circumference of its periphery, thus can prevent the air trapping that blows out from Air blowing mouth 3 in this slot part 5 and make the rise reduction of caused air mass flow accuracy of detection of excessive pressure in this slot part 5.In addition, for this air outlet 4, can suitably set quantity, the internal diameter Air blowing amount from Air blowing mouth 3 etc. being taken into account and arranged, and measure with spread configuration equally spaced on the same circumference of nozzle 2 peripheries at this, thus, can high precision and keep high repeatability and become the dimension inspection of the inner peripheral surface of the drum thing 20 that checks object.
In addition, mensuration of the present invention has not from the interior outstanding big or small Air blowing nozzle of this slot part 5 by Air blowing mouth 3 installations being located at the bottom surface of slot part 5 with nozzle 2, can eliminate the irregular of the air capacity that blows out from each Air blowing mouth 3, and effectively suppress near the air turbulence this Air blowing mouth 3.; the dimensional inspection device 1 of drum thing of the present invention is by installing Air blowing nozzles at the Air blowing mouth 3 of measuring with nozzle 2, more high precision and the dimension inspection of inner peripheral surface that keeps high repeatability and become the drum thing 20 of inspection object.
Incidentally, as shown in Figure 2, mensuration of the present invention also can make to measure with the slot part 5 of nozzle 2 and the regional area between slot part 5 recessed and realize lightweight with nozzle 2.For example, mensuration of the present invention is with nozzle 2 by being made as shape as shown in Figure 2, and a dead lift becomes easy and operability is excellent.
In addition, in the dimensional inspection device 1 of drum thing of the present invention, be preferably, easy in order to make to check the insertion of drum thing 20 of object, measure and with nozzle 2, at its leading section, possess the guide part 6 of the truncated cone shape of undergauge along with the side towards these drum thing 20 insertions.
The dimensional inspection device 1 of drum thing of the present invention is by possessing the guide part 6 along with the truncated cone shape of undergauge towards checking the side of drum thing 20 insertions of object measuring leading section with nozzle 2, makes this mensuration to the insertion of this drum thing 20, become easy with nozzle 2.Therefore, the dimensional inspection device 1 of drum thing of the present invention is by possessing this guide part 6 in mensuration with the leading section of nozzle 2, can promptly carry out, as drum thing 20 installation with nozzle 2 to this mensuration that checks object, and effectively reduce, checking process number.
In addition, in the dimensional inspection device 1 of drum thing of the present invention, guide part 6 is configured to preferably by resin material or soft metal.
Mensuration of the present invention with nozzle 2 in the situation that its leading section possesses the side inserted along with the drum thing 20 towards checking object the guide part 6 of the truncated cone shape of undergauge, by this guide part 6 is made as to resin or soft metal system, in the time of can being effectively suppressed at the drum thing 20 of installation check object, this drum thing 20 is impaired.Particularly in the situation that this drum thing 20 by material, than this mensuration, with the soft material of nozzle 2, formed, when this drum thing 20 is installed on to this mensuration with nozzle 2, this drum thing 20 1 sides are easy to impaired, therefore, in this mensuration, with the leading section of nozzle 2, possesses the guide part 6 that formed by resin or soft metal system for preferably.In addition, this guide part 6 resin used is not particularly limited, and can use such as nylon, expoxy glass resin, MC nylon (registered trademark), POM((DURACON) polyoxymethylene such as (registered trademark)), HD tygon, fluororesin, PEEK resin, PPS resin, ABS resin, PBT resin etc.In addition, as this guide part 6 soft metal used, can use copper, aldary, lead, lead alloy, tin, ashbury metal, aluminium, aluminium alloy etc.
Incidentally, guide part 6 of the present invention also can be made as handling such as utilizing bolt and be installed on freely the structure of measuring with the leading section of nozzle 2, supposes that this guide part 6 has occurred can be replaced with new product in the situation of wearing and tearing.Therefore, the dimensional inspection device 1 of the drum thing of the application of the invention, can carry out high-precision inspection long-term and stably.
The dimension inspection method of drum thing of the present invention: the dimension inspection method of drum thing of the present invention is to have used the dimension inspection method of drum thing of the dimensional inspection device 1 of above-mentioned drum thing.And, in the dimension inspection method of this drum thing, the drum master ring for tolerance higher limit (not shown) that possesses the inner peripheral surface of the internal diameter size suitable with the tolerance higher limit of the size of this drum thing is installed and is disposed at the periphery of measuring with nozzle 2, by air mass flow detecting unit 12, detect the air stream value while blowing out the air pressure regulation from 3 pairs of these tolerance higher limits of Air blowing mouth with the inner peripheral surface of drum master ring, obtain the air stream value corresponding with the tolerance higher limit of the internal diameter size of this drum thing.In addition, the drum master ring for lower variation of tolerance value (not shown) that possesses the inner peripheral surface of the internal diameter size suitable with the lower variation of tolerance value of the internal diameter size of this drum thing is installed to the periphery that is disposed at this mensurations use nozzle, by air mass flow detecting unit 12, detect the air stream value while blowing out the air pressure regulation from 3 pairs of these lower variation of tolerance values of this Air blowing mouth with the inner peripheral surface of drum master ring, obtain the air stream value corresponding with the lower variation of tolerance value of the internal diameter size of this drum thing.Then, the dimension inspection method of this drum thing is characterised in that, the drum thing 20 that checks object is installed and is disposed at the periphery of nozzle 2 for this mensuration, by this air mass flow detecting unit 12, detect the air stream value when the inner peripheral surface of 3 pairs of these drum things 20 of this Air blowing mouth blows out the air pressure regulation, and judge that air stream value is now whether in the scope of the tolerance higher limit in the internal diameter size with this drum thing and air stream value corresponding to lower variation of tolerance value.
With Fig. 1 and Fig. 2, the dimensional inspection device 1 with drum thing of the present invention is checked as the method for inner peripheral surface size that checks the drum thing 20 of object and described.Fig. 1 and Fig. 2 represent particularly in the situation that use internal combustion engine to check the drum thing dimensional inspection device used of object with cylinder sleeve 20 conducts.The dimensional inspection device 1 of the drum thing shown in Fig. 1, for the air of supplying with from air voltage source (not shown) is offered to the structure of measuring with nozzle 2 via regulator (not shown), can check and become the inner peripheral surface size of cylinder sleeve 20 for the internal combustion engine of inspection object with the detected air stream value of the air mass flow detecting unit 12 between nozzle 2 by being located at this regulator and this mensuration.
Used in the dimension inspection method of dimensional inspection device 1 of the drum thing of the present invention shown in Fig. 1, when checking internal combustion engine by the inner peripheral surface size of cylinder sleeve 20, first the mensuration of cylindrical shape has been inserted in to the interior week of this internal combustion engine use cylinder sleeve 20 with nozzle 2.Now, being inserted in this mensuration utilizes retainer 7 to position with this internal combustion engine of nozzle 2 with cylinder sleeve 20 when mounted.And, at this, measure with on the outer peripheral face of nozzle 2, by this mensuration with the axle of nozzle 2 centered by and the position configuration that becomes object is free air-blowing outlet 3,18 the Air blowing mouths 3 of total that possess from the outer peripheral face of measuring with nozzle 2 blow out by the air regulator pressure regulation, and by flowmeter 12 detections air stream value now.
At this, at use traffic meter 12 as air mass flow detecting unit in the situation that, and the variation of the height and position that the variation of this mensuration air mass flow that accompany with the variation of the gap value between cylinder sleeve 20, that blow out with nozzle 2 from this mensuration with nozzle 2 and this internal combustion engine is floated by buoy represents, thereby can carry out the detection of air stream value.Incidentally, this measures with outer peripheral face and this internal combustion engine of nozzle 2 larger, also larger by the detected air mass flow of air mass flow detecting unit 12 with the gap value between the inner peripheral surface of cylinder sleeve 20.
And, in the dimension inspection method of drum thing of the present invention, to the tolerance higher limit that possesses the inner peripheral surface of the internal diameter size suitable with the tolerance higher limit of the internal diameter size of this drum thing, with drum master ring, insert and measure with nozzle 2, and the reference value using the air stream value being detected by flowmeter 12 now as the tolerance upper limit.In addition, in the dimension inspection method of drum thing of the present invention, to the lower variation of tolerance value that possesses the inner peripheral surface of the internal diameter size suitable with the lower variation of tolerance value of the internal diameter size of this drum thing, with drum master ring, insert and measure with nozzle 2, and the reference value using the air stream value being detected by flowmeter 12 now as lower variation of tolerance.
Then, in the dimension inspection method of drum thing of the present invention, to the internal combustion engine that becomes inspection object, with inserting in interior week of cylinder sleeve 20, measure and use nozzle 2, and the reference value that the air stream value being represented by flowmeter 12 now and the drum master ring by above-mentioned are set compares, if it is qualified to be judged to be within the scope of reference value, if depart from reference value scope, be judged to be defective.
So, in the dimension inspection method of drum thing of the present invention, to measuring with nozzle 2, supply with pressurized air, it is qualified based on this pressurized air, according to this mensurations, by the outer peripheral face of nozzle 2 and the air mass flow that changes as the gap length between the inner peripheral surface of the drum thing 20 of inspection object, to determine whether.Therefore, according to the dimension inspection method of drum thing of the present invention, even if be not for example the personnel of skilled operation, also can high precision and keep high repeatability and check, and also can carry out accurately whether qualified judgement with the time than in the past short.
Industrial applicibility
According to the dimensional inspection device of drum thing of the present invention, by configuring dividually more than 6 Air blowing mouths on the same circumference measuring by nozzle periphery, can detect once as the air mass flow of inner peripheral surface complete cycle that checks the drum thing of object, therefore, can high precision and carry out in short time the dimension inspection of the inner peripheral surface of this drum thing.In addition, according to the dimension inspection method of drum thing of having used the dimensional inspection device of drum thing of the present invention, even if be not the personnel of skilled operation, also can carry out at short notice accurately whether qualified judgement, therefore, can carry out with the form of all inspections on production line the dimension inspection of the inner peripheral surface of drum thing.In addition, according to the dimensional inspection device of drum thing of the present invention and used the dimension inspection method of the drum thing of this device, can be applicable to require the dimension inspection with the inner peripheral surface of cylinder sleeve compared with thin and easily deformable internal combustion engine of high-precision dimension inspection and wall thickness.
Claims (6)
1. a dimensional inspection device for drum thing, checks that the inner peripheral surface size of drum thing, the dimensional inspection device of described drum thing are characterised in that,
This dimensional inspection device possesses:
Mensuration nozzle, can be inserted in the interior week of this drum thing, and has the outer peripheral face relative with the inner peripheral surface of this drum thing, and is provided with air flow circuit in inside, and the Air blowing mouth being communicated with this air flow circuit is located to this outer peripheral face;
Regulator, carries out pressure regulation to the pressurized air of supplying with from air voltage source; And
Air mass flow detecting unit, the inner peripheral surface detecting from this Air blowing mouth to this drum thing blows out the air mass flow by the air this regulator pressure regulation,
This Air blowing mouth configures more than 6 on the same circumference by nozzle periphery dividually in this mensuration.
2. the dimensional inspection device of drum thing according to claim 1, wherein,
Described in described Air blowing opening's edge, measure with the length direction configuration of nozzle multistage.
3. the dimensional inspection device of drum thing according to claim 1 and 2, wherein,
Described mensuration forms slot part with nozzle on the same circumference of its periphery, the air outlet that is provided with described Air blowing mouth in the bottom surface of this slot part and overflows for the air that makes to blow out in this slot part,
At this Air blowing mouth, Air blowing nozzle is installed, this Air blowing has not from outstanding size in this slot part with nozzle.
4. the dimensional inspection device of drum thing according to claim 1 and 2, wherein,
Described mensuration easily possesses the guide part of along with the side towards this drum thing the inserted truncated cone shape of undergauge at its leading section in order to make to check the insertion of the drum thing of object with nozzle.
5. the dimensional inspection device of drum thing according to claim 4, wherein,
Described guide part consists of resin material or soft metal.
6. a dimension inspection method for drum thing, has been used the dimensional inspection device of the drum thing described in claim 1 or 2, the dimension inspection method of described drum thing to be characterised in that,
In the dimension inspection method of this drum thing, the tolerance higher limit that possesses the inner peripheral surface of the internal diameter size suitable with the tolerance higher limit of the internal diameter size of this drum thing is installed and is disposed at the periphery of nozzle for described mensuration with drum master ring, by described air mass flow detecting unit, detect the air stream value while this tolerance higher limit being blown out to the air pressure regulation with the inner peripheral surface of drum master ring from described Air blowing mouth, obtain the air stream value corresponding with the tolerance higher limit of the internal diameter size of this drum thing
The lower variation of tolerance value that possesses the inner peripheral surface of the internal diameter size suitable with the lower variation of tolerance value of the internal diameter size of this drum thing is installed to the periphery that is disposed at this mensurations use nozzle with drum master ring, by this air mass flow detecting unit, detect the air stream value while this lower variation of tolerance value being blown out to the air pressure regulation with the inner peripheral surface of drum master ring from this Air blowing mouth, obtain the air stream value corresponding with the lower variation of tolerance value of the internal diameter size of this drum thing
Then, the drum thing that checks object is installed and is disposed at the periphery of nozzle for this mensuration, by this air mass flow detecting unit, detect the air stream value when this Air blowing mouth blows out the air pressure regulation to the inner peripheral surface of this drum thing, and judge that air stream value is now whether in the scope of the tolerance higher limit in the internal diameter size with this drum thing and air stream value corresponding to lower variation of tolerance value.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013072471A JP6211284B2 (en) | 2013-03-29 | 2013-03-29 | Dimensional inspection apparatus for cylindrical object and cylindrical dimension inspection method using the same |
| JP2013-072471 | 2013-03-29 |
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| CN104075672A true CN104075672A (en) | 2014-10-01 |
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| CN201410125965.3A Active CN104075672B (en) | 2013-03-29 | 2014-03-31 | The dimensional inspection device of drum thing and the dimensional gaughing method of drum thing |
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| CN (1) | CN104075672B (en) |
Cited By (1)
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| CN110514155A (en) * | 2019-08-30 | 2019-11-29 | 中国航发动力股份有限公司 | A method of for measuring the measuring device of high-precision shallow bore hole diameter and measuring shallow bore hole using it |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7022427B2 (en) * | 2018-05-18 | 2022-02-18 | 大森機械工業株式会社 | Sealing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104075672B (en) | 2017-11-07 |
| JP2014196944A (en) | 2014-10-16 |
| JP6211284B2 (en) | 2017-10-11 |
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Inventor after: National joy Inventor after: Sasaki Masahiro Inventor before: YOSHITAKA KOKUBUN Inventor before: Sasaki Masahiro |