CN103234434B - Internal taper detection device and method - Google Patents
Internal taper detection device and method Download PDFInfo
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- CN103234434B CN103234434B CN201310147276.8A CN201310147276A CN103234434B CN 103234434 B CN103234434 B CN 103234434B CN 201310147276 A CN201310147276 A CN 201310147276A CN 103234434 B CN103234434 B CN 103234434B
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Abstract
The invention provides internal taper detection device and method, for detecting the actual tapering of internal taper hole after processing according to design tapering, this pick-up unit comprises block, location-plate, internal diameter gauge rod and at least one measurement column, by the measurement of internal diameter gauge rod, whether the tapering after can judging actual processing in conjunction with trigonometric function rule conforms to design tapering, thus guarantee that follow-up workpiece assembling completes smoothly, promote relevant device performance in use, lower the device damage caused because taper-face contact ratio is not enough, better ensure the efficiency under pipelining thus.
Description
Technical field
The present invention relates to a kind of pick-up unit and method, particularly a kind of pick-up unit of tapering of the internal taper hole for workpiece and method.
Background technology
At some production fields, usually need the Large Roller rumble using interior sky.The inner two ends of these roller rumbles are the conical surface, for coordinating with other components being male cone (strobilus masculinus).The requirement on machining accuracy of these inner conical surfaces is higher, needs relative dimensions and ratio are met the demands, and just can make these equipment normal operations.
The existing measuring appliance for internal taper is all confined to small-sized equipment, such as, be the measurement of the hole tapering of 10-100mm for the diameter on miniature device, and lack the device of taper measurement diameter being reached to this large-scale internal taper hole of 1000mm.Therefore, after processing according to the tapering of design the internal taper hole of these Large Roller rumbles, whether the dimension scale not having good apparatus and method accurately to measure these internal taper holes meets designing requirement.If the tapering of actual processing has when relatively large deviation with design tapering just these roller rumbles and other components are carried out overall package, can find that size is not mated thus needs are done over again.If run by force in the undesirable situation of taper-face contact area after assembling, in use these components such as pair roller rumble can be caused to cause damage toward contact, and bring a series of negative effect.
Summary of the invention
In view of this, be necessary to provide a kind of internal taper detection device and method to meet for the real needs in above-mentioned production field.
A kind of internal taper detection device, for detecting the actual tapering of internal taper hole of the workpiece after processing according to design tapering, this pick-up unit comprises block, location-plate, internal diameter gauge rod and at least one measurement column, this block is for being fixedly connected on workpiece, and be fixedly connected with location-plate, location-plate extends into internal taper hole, and location-plate offers at least one through hole, the bottom surface of each through hole and internal taper hole is at a distance of corresponding one both set a distance, the axis of each through hole and the intersect vertical axis of internal taper hole, measurement column is used for being contained in a corresponding through hole, and one end of measurement column is for connecting to more corresponding on the bus of internal taper hole, the other end is used for connecting with one end of internal diameter gauge rod, internal diameter gauge rod is for measuring the distance between this end of connection internal diameter gauge rod of measurement column and another bus relative with this bus on internal taper hole.
The method utilizing the actual tapering of above-mentioned internal taper detection device to the internal taper hole of workpiece to detect, comprises the steps:
According to design tapering T and the basal diameter D of internal taper hole, calculate internal taper hole with the theoretical diameter d of internal taper hole bottom surface at a distance of a both set a distance b place
t;
Block is fixedly connected on workpiece, and location-plate is fixedly connected with block, make location-plate extend into internal taper hole, location-plate is provided with at least one through hole, the axis of through hole and the intersect vertical axis of internal taper hole, and wherein the bottom surface of a through hole and internal taper hole at a distance of both set a distance b;
The measurement column with length L is placed in the bottom surface of internal taper hole in the through hole of both set a distance b, and one end of measurement column connects to more corresponding on the bus of internal taper hole;
One end of internal diameter gauge rod is connected with the other end of measurement column, and the distance M measured between this end of connection internal diameter gauge rod of measurement column and another bus relative with this bus of internal taper hole, and following relational expression is utilized to calculate this internal taper hole and the internal taper hole bottom surface actual diameter d at a distance of both set a distance b places
r: d
r=M/cos
+ L, wherein θ is the cone angle that design tapering T is corresponding;
Judge this actual diameter d
rwith theoretical diameter d
twhether equal, if do not waited, the actual tapering of this internal taper hole is not inconsistent with design tapering.
A kind of internal taper detection method, the actual tapering for the internal taper hole to workpiece detects, and comprises the steps:
According to relational expression: M=(D ±-bT-L) cos
theory of computation value M
t, wherein adopt relational expression: M=(D-bT-L) cos when internal taper hole inside contracts towards workpiece
; Relational expression: M=(D+bT-L) cos is adopted when internal taper hole expands in workpiece
;
Wherein D represents the basal diameter of internal taper hole; B represents the distance a bit arriving the bottom surface of internal taper hole on a bus of internal taper hole; T represents the design tapering of internal taper hole; L represent on this bus a bit and by this internal taper hole of any radial direction on another point between distance; θ represents the cone angle that internal taper hole is corresponding in time designing tapering T; M represents that another point above-mentioned arrives the distance between another bus relative with this bus of internal taper hole;
The internal taper detection device comprising block, location-plate, internal diameter gauge rod and at least one measurement column is provided, block is fixedly connected on workpiece, and location-plate is fixedly connected with block, location-plate is made to extend into internal taper hole, wherein location-plate is provided with at least one through hole, the axis of through hole and the intersect vertical axis of internal taper hole, one of them through hole is b to the bottom surface distance of internal taper hole;
In the through hole that the bottom surface distance measurement column with length L being placed in the above-mentioned of location-plate and internal taper hole is b, and one end of measurement column connects to more corresponding on this bus of internal taper hole;
Connected with the other end of measurement column one end of internal diameter gauge rod, and measure the distance between this end of connection internal diameter gauge rod of measurement column and another bus relative with this bus of internal taper hole, the distance recorded is actual value M
r;
Judge actual value M
rwith theoretical value M
twhether equal, if do not waited, show that the actual tapering of this internal taper hole is not inconsistent with design tapering.
Internal taper detection device structure provided by the invention is simple, with low cost, easy to use, the internal taper after processing can be detected whether conform to design tapering, thus guarantee that follow-up workpiece assembling completes smoothly, promote relevant device performance in use, lower the device damage caused because taper-face contact ratio is not enough, better ensure the efficiency under pipelining thus.
Internal taper detection device provided by the invention can be used for detecting the tapering of the internal taper hole of various workpiece, is particularly suitable for detecting the tapering of the internal taper hole of large-scale workpiece (such as roller, particularly diameter is more than or equal to 1000mm).
With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of the internal taper detection device of one embodiment of the invention.
Fig. 2 is that the internal taper detection device of one embodiment of the invention is applied to the view of in a roller, the internal taper hole of this roller being carried out to tapering detection.
Fig. 3 is the schematic side view of Fig. 2.
Fig. 4 is the internal taper detection device of one embodiment of the invention carries out tapering detection principle schematic to the internal taper hole of this roller.
Fig. 5 is the internal taper detection device of one embodiment of the invention carries out tapering detection principle schematic to the internal taper hole of another roller.
Main element symbol description
| Block | 10 |
| Substrate | 101 |
| Linking arm | 102 |
| Connecting hole | 103 |
| Location-plate | 12 |
| Through hole | 121 |
| Measurement column | 13 |
| One end | 131、151 |
| The other end | 132、152 |
| Locating sleeve | 14 |
| Internal diameter gauge rod | 15 |
| Roller | 20 |
| Outer wall | 201 |
| Inwall | 202 |
| Axis | 22 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Internal taper detection device provided by the invention is used for detecting the actual tapering of internal taper hole after processing according to design tapering, can show whether the actual tapering of the internal taper hole after processing conforms to described design tapering by detecting, thus determine whether proceed processing or drop into specifically to use to this internal taper hole.
Please refer to Fig. 1, internal taper detection device provided by the invention comprises block 10, location-plate 12, locating sleeve 14, internal diameter gauge rod 15 and measurement column 13.
Please also refer to Fig. 2 and Fig. 3, be used for offering in end to a roller 20 vertex of a cone for this pick-up unit in the present embodiment to be described towards the internal taper hole of this roller 20, wherein this internal taper hole is along axis 22 Rotational Symmetry of roller 20, and also namely the axis of internal taper hole overlaps with the axis 22 of roller 20.Should understand, in other embodiments, this pick-up unit may be used for detecting the tapering of the internal taper hole on other workpiece.
This block 10 comprises substrate 101 and linking arm 102, and substrate 101 is for being connected with the end of roller 20, and linking arm 102 is connected with location-plate 12.When pick-up unit is used for detecting other workpiece, this substrate 101 is for being connected with other workpiece.
Substrate 101 is connected common securing members such as usually can adopting screw and connects with the end of roller 20.In concrete application, some rollers 20, can at end opens fastener hole due to the needs of assembling.In this case, only need to offer corresponding fastener hole on the substrate 101, just by securing members such as screws, substrate 101 can be fastened on the end of roller 20.
Further, for when preventing substrate 101 on the end being connected to roller 20 and periphery object produce and interfere, the arc surface corresponding with the outer wall 201 of roller 20 can be arranged in the bottom of substrate 101, or the volume directly controlling substrate 101 is no more than the outer wall 201 of roller 20.
This linking arm 102 is arranged on the substrate 101, and when on the end that block 10 is fastened on roller 20, at least part of linking arm 102 extends beyond the respective inner walls 202 of roller 20.
After location-plate 12 is connected with linking arm 102, location-plate 12 extends into the internal taper hole of roller 20.Location-plate 12 is a long strip-board shape, also can be other suitable shapes, as long as do not hinder this location-plate 12 to extend into the internal taper hole of roller 20 and the function positioned measurement column 13.
Location-plate 12 offers at least one through hole 121, the bottom surface of each through hole 121 and internal taper hole, in the present embodiment namely with the end of roller 20 at a distance of corresponding one both set a distance, when location-plate 12 is mounted in the internal taper hole of roller 20, the axis of each through hole 121 and the axis 22 of roller 20 intersect vertically.
Preferably, when location-plate 12 is mounted in the internal taper hole of roller 20, the axis of each through hole 121 drops on the same bus of internal taper hole.Understandably, definition definition as in geometry of bus, namely for circular cone, bus refers to the line of circular cone bottom surface circumferentially any point and conical tip, also can be the hypotenuse of the right-angle triangle forming circular cone, for round platform, bus refers to the non-straight arm of angle waist of the right-angled trapezium forming round platform.
Preferably, each through hole 121 can be eliminated by the design tapering of the internal taper hole of roller 20 with end both set a distances apart of roller 20, such as when the design tapering of the internal taper hole of roller 20 is 1:32, each through hole 121 can be respectively 16mm, 32mm etc. with end both set a distances apart of roller 20, and for example when the design tapering of the internal taper hole of roller 20 is 1:30, then each through hole 121 can be respectively 15mm, 30mm etc. with end both set a distances apart of roller 20.Design like this can carry out detection validation for the actual tapering of the internal taper hole of this roller 20 more easily, this follow-up introduce Cleaning Principle and method time will have further description.
In certain embodiments, this location-plate 12 can be one-body molded with block 10.But preferably, for the better roller 20 for detecting different designs tapering, location-plate 12 should be made can to change on demand with the link position of block 10, such as can along the radial direction of roller 20 on the linking arm 102 of block 10, also namely the diverse location place of the radial direction of the bottom surface of internal taper hole arranges multiple connecting hole 103, location-plate 12 is connected by the connecting hole 103 of web member with the diverse location place on linking arm 102, just can be used for changing location-plate 12 and the relative link position of block 10, make location-plate 12 can be applicable to being installed in the internal taper hole of different tapering.
Understandably, also can along the radial direction of roller 20 on location-plate 12, also namely the diverse location place of the radial direction of the bottom surface of internal taper hole arranges corresponding connecting hole, may be used for changing the relative link position of location-plate 12 and block 10 equally.
Certainly, location-plate 12 by arranging other modes such as strong magnets, can also fix both relative positions with the connection of block 10.Strong magnets can be filled in these connecting holes, when being necessary the relative position of adjusted position plate 12 and block 10, can make the magnet adsorption of diverse location together.And fixed by magnetic force, rotatable, the mobile adjustment of location-plate 12 can be facilitated, be convenient to the change in size that this device can adapt in the regional area of some workpiece.
Measurement column 13 is column, and preferred two ends are outer gibbosity, is beneficial to and the connecting of peripheral element, thus improves accuracy of detection.The diameter of the through hole 121 on the diameter of measurement column 13 and location-plate 12 is suitable, and measurement column 13 just can be contained in through hole 121.Namely one end 131 of measurement column 13, for connecting with the inwall 202 of roller 20, also connects to more corresponding on a bus of internal taper hole.The other end 132 of measurement column 13 is for connecting with one end 151 of internal diameter gauge rod 15.
Internal diameter gauge rod 15 can be common rod-type internal diameter gauge rod.One end 151 of internal diameter gauge rod 15 is for connecting with the other end 132 of measurement column 13, more corresponding on a bus corresponding to the inwall 202 of roller 20 of the other end 152 of internal diameter gauge rod 15 connects, the bus that the bus of this correspondence connects with one end 131 of measurement column 13 is about the axisymmetrical of internal taper hole, for convenience of describing, being called for short these two buses relative, is two relative buses on internal taper hole.Internal diameter gauge rod 15, namely for measuring the distance between this other end 132 and this bus of measurement column 13, is appreciated that the axis 22 of this other end 132 of these two relative buses, measurement column 13 and roller 20 is all in same plane.
Internal diameter gauge rod 15 is also referred to as micrometer inside caliper, is the general measuring device tool for measuring interior Circularhole diameter.It by recording circumferencial direction maximum point, axis direction smallest point, can obtain the diameter of corresponding endoporus when measuring diameter.According to design feature and the operating characteristics of this measurer, the distance needing in the present invention to record can be obtained eaily.
Though locating sleeve 14 is inessential, can be internal diameter gauge rod 15 and connect with measurement column 13 and provide location, handled easily.Pilot hole is offered respectively in the two ends of locating sleeve 14, for the described other end 132 of accommodating location survey post 13 and described one end 151 of internal diameter gauge rod 15.
In certain embodiments, multiple measurement column 13 can be provided, and these measurement columns 13 have length difference, when this length difference makes the actual tapering of roller 20 internal taper hole after processing conform to design tapering, this other end 132 of corresponding measurement column 13 is all equal with the distance between the respective bus bars on roller 20 inwall 202, wherein the axis 22 of this bus, this other end 132 and roller 20 is the same, should meet the condition in same plane.In other words, arranged by these measurement columns 13 and have length difference, when the actual tapering of roller 20 internal taper hole detected conforms to design tapering, so internal diameter gauge rod 15 carries out measuring the reading of gained on these measurement columns 13 is all consistent.
The Cleaning Principle of internal taper detection device of the present invention is described below in conjunction with Fig. 4.
The internal taper hole of roller 20 inside contracts towards roller 20.If the design tapering of the internal taper hole of roller 20 is T, the diameter of internal taper hole in the end of roller 20 of roller 20, also namely the basal diameter of internal taper hole is D, be d with the end of roller 20 at a distance of the diameter that the internal taper hole of both this roller 20 of set a distance b place is corresponding, then according to the definition of tapering, there is following relational expression one: T=(D-d)/b.According to relational expression one, following relational expression two: d=D-bT can be obtained.
If the length of measurement column 13 is L, if the distance between the respective bus bars (axis 22 of this bus, this other end 132 and roller 20 is at same plane) on the other end 132 of measurement column 13 and roller 20 inwall 202 is M.According to trigonometric function relative theory, shown in figure, angle A is equal with angle B, and is the half of taper angle, and represent with θ the cone angle that design tapering T is corresponding, then angle A and angle B are
, and have following relational expression three: d=M/cos with the end of roller 20 at a distance of diameter d corresponding to the internal taper hole of both this rollers 20 of set a distance b place and L, M
+ L.According to relational expression two and relational expression three, following relational expression four: M=(D-bT-L) cos can be obtained
.
Therefore, the design tapering T of the internal taper hole of certain concrete roller 20 known and diameter D of internal taper hole in the end of roller 20, and the length L of measurement column 13 provided by the invention, and the end distance b of respective through hole 121 to roller 20, then the theoretical value M at this through hole 121 place can be calculated according to relational expression four
t.
And internal diameter gauge rod 15 provided by the invention can record reading M
r, the actual value M that also namely this through hole 121 place is corresponding
r.By comparison actual value M
rwith theoretical value M
tif unanimously, then represent the actual tapering of the internal taper hole of this roller 20 and design tapering T-phase etc., also namely represent and put in place to the processing of internal taper hole, meet designing requirement; If inconsistent, then represent that the internal taper hole processing of this roller 20 is not in place, actual tapering and design tapering T are not etc.
Below will by comparison actual value M
rwith theoretical value M
tjudge the principle whether actual tapering of internal taper hole conforms to design tapering to be called principle one.
In addition, relational expression two: d=D-bT above and relational expression three: d=M/cos
+ L all can be used to express and the end of roller 20 diameter d that apart both the internal taper hole of this roller 20 of set a distance b place is corresponding.
Therefore, the design tapering T of the internal taper hole of certain concrete roller 20 known and diameter D of internal taper hole in the end of roller 20, then according to relational expression two, can calculate with the end of roller 20 (i.e. the bottom surface of internal taper hole) at a distance of theoretical diameter d corresponding to the internal taper hole of any one both this roller 20 of set a distance b place
t, i.e. d
t=D-bT.
And by the length L of measurement column 13 provided by the invention, and the reading M that internal diameter gauge rod 15 records, and according to above-mentioned relation formula three, then can know this both set a distance b place corresponding, the actual diameter d of internal taper hole
r, i.e. d
r=M/cos
+ L.
By comparison actual diameter d
rwith theoretical diameter d
tif unanimously, then represent the actual tapering of the internal taper hole of this roller 20 and design tapering T-phase etc., also namely represent and put in place to the processing of internal taper hole, meet designing requirement; If inconsistent, then represent that the internal taper hole processing of this roller 20 is not in place, actual tapering and design tapering T are not etc.
Below will by comparison actual diameter d
rwith theoretical diameter d
t, judge the principle whether actual tapering of internal taper hole conforms to design tapering to be called principle two.
Introduce below again and utilize above-mentioned internal taper detection device and principle one, the actual tapering of pair roller 20 internal taper hole carries out the method detected.
First, according to relational expression four: M=(D-bT-L) cos
theory of computation value M
t.
Wherein D represents the diameter of the internal taper hole of roller 20 in the end of roller 20, is also the basal diameter of internal taper hole;
B represent on a bus of internal taper hole a bit to the distance of the end of roller 20, the through hole 121 both on the location-plate 12 of set a distance b also namely in internal taper detection device of the present invention and the distance between roller 20 end;
T represents the design tapering of the internal taper hole of roller 20;
L represent on this bus a bit and by this any along the distance between another point in the radial direction of roller 20, the length of the measurement column 13 of L also namely in internal taper detection device of the present invention;
θ represents the cone angle that internal taper hole is corresponding in time designing tapering T.
Therefore theoretical value M
talso just represent that another point above-mentioned arrives the theoretical between another bus relative with above-mentioned bus of internal taper hole.
Correspondingly, block 10 in internal taper detection device is fixedly connected on the end of roller 20, and location-plate 12 is fixedly connected with block 10, location-plate 12 is made to extend into the internal taper hole of roller 20, wherein location-plate 12 is provided with at least one through hole 121, the axis of through hole 121 and the axis 22 of roller 20 intersect vertically, and one of them through hole 121 is b to the end distance of roller 20.
Afterwards, in the through hole 121 that the end distance measurement column 13 with length L being placed in the above-mentioned of location-plate 12 and roller 20 is b, and one end 131 of measurement column 13 connects with roller 20 inwall 202, also namely connects to more corresponding on this bus of internal taper hole.
Then, one end 151 of internal diameter gauge rod 15 is connected with the other end 132 of measurement column 13, and the distance measured between this other end 132 of measurement column 13 and the corresponding bus on roller 20 inwall 202, also the distance namely and between another bus relative with this bus of internal taper hole, understandable, this other end 132 of these two opposing busbars, measurement column 13 and the axis of roller 20 are in same plane.The distance recorded is actual value M
r.
Judge actual value M
rwith theoretical value M
twhether equal, if do not waited, show that the actual tapering processed of the internal taper hole of this roller 20 is not inconsistent with design tapering, if equal, show that the actual tapering processed of the internal taper hole of this roller 20 conforms to design tapering.Be appreciated that above-mentioned theory value and actual value can arrange rational deviate because measure and process the relation that all there is error, if both are within the scope of this deviate, then can represent that the tapering of actual processing conforms to design tapering.
In the application of reality, can according to the roller 20 of different design tapering T, and internal taper hole is at the diameter D of the end of roller 20, utilizes above-mentioned relation formula four: M=(D-bT-L) cos
calculate the theoretical value M that different b values is corresponding
t, be established as actual detection and corresponding comparing data bank be provided.Thus, when these internal taper detection device of practical application, internal diameter gauge rod 15 is utilized to record actual value M
rafter, only need actual value M
rwith the corresponding theoretical value M in data bank
tcomparison.
By above-mentioned explanation, a bus of internal taper hole is selected a point (with roller 20 end distance for b) to measure above-mentioned actual value M
rwith just can know this internal taper hole process after actual tapering whether conform to design tapering.Convenience when calculating to utilize relational expression four, described in can enabling, both set a distance b is designed tapering T and eliminates.
In order to avoid the impact of measuring error as far as possible, as shown in Figure 3, described actual value M
rcan be the mean value of end gained behind multiple positions circumferentially at both set a distance b places of internal taper hole by measuring this roller 20 and roller 20.This plurality of positions can be arranged be evenly distributed on circumferentially.Concrete measurement how many times can decide according to factors such as the internal diameters of roller 20 (or basal diameter of internal taper hole), such as when internal diameter is more than 1200mm, evenly can measure 6 location points circumferentially, when internal diameter is more than 1800mm, evenly can measure 8 location points circumferentially.
In addition, it is two shown in the measurement column 13(figure that multiple length can also be provided to differ), be contained in a corresponding through hole 121 respectively, and design the difference in length of these measurement columns 13, when the actual tapering of roller 20 internal taper hole is conformed to design tapering, distance M between the other end 132 of each measurement column 13 with the respective bus bars (axis 22 of this bus, this other end 132 and roller 20 is at same plane) on roller 20 inwall 202 is all equal, is also that the reading M that each internal diameter gauge rod 15 records in the position of corresponding measurement column 13 is all equal.Thus, the distance M between this other end 132 with corresponding bus of the measurement column 13 in the different through holes 121 of location-plate 12 is measured
rafter, directly by each measured value of comparison M
rwhether equal, just can know whether the actual tapering of internal taper hole has problems.Comparing data bank is set up in the position so can saving corresponding each b value, by the prior selection to b value, and the differentiation process to L value, make when actual tapering conforms to design tapering, each M value is all equal.
In the application of reality, this internal taper detection device according to concrete roller 20 and its different design tapering, can provide the measurement column 13 accordingly with difference in length.When needing the tapering of the internal taper hole detecting a certain concrete roller 20, then use corresponding measurement column 13.
When roller internal taper detection device has locating sleeve 14, then when one end 151 of internal diameter gauge rod 15 is connected with the other end 132 of measurement column 13, use this locating sleeve 14, the pilot hole that the two ends of locating sleeve 14 are offered is described one end 151 of accommodating location internal diameter gauge rod 15 and the described other end 132 of measurement column 13 respectively.
Further, interference can not be produced when being placed in roller 20 internal taper hole of different tapering to make this location-plate 12, block 10 can be made to change with the relative link position of location-plate 12, such as on the linking arm 102 of block 10 or on location-plate 12, multiple connecting hole is set along the diverse location of the radial direction of roller 20, adopt web member to connect relative link position that the connecting hole of diverse location changes location-plate and linking arm.
Above-mentioned explanation be internal taper detection device to having the internal taper hole of the vertex of a cone towards roller 20, also namely carry out towards the tapering of the internal taper hole of convergent in workpiece the method that detects.In fact, internal taper detection device of the present invention also can be used for when the vertex of a cone of the internal taper hole of roller 20 is away from roller 20, also namely towards in workpiece during flaring, to the detection of the tapering of this internal taper hole.As shown in Figure 5, similar in this detection method and above-described embodiment, but because internal taper hole is by the inside flaring in the end of roller 20, therefore, when the end of internal taper hole and roller 20 calculating this roller 20 is at a distance of a theoretical diameter d that both set a distance b place was corresponding, answered by the relational expression two: d=D-bT in above-described embodiment and correspondingly become following relational expression five: d=D+bT.According to relational expression five: d=D+bT and relational expression three: d=M/cos
+ L can obtain relational expression six: M=(D+bT-L) cos
.Therefore, in corresponding step, theoretical value M is calculated
ttime should adopt this relational expression six, other step is all identical, and this does not repeat.
Introduce below again and utilize above-mentioned internal taper detection device and principle two, the actual tapering of pair roller 20 internal taper hole carries out the other method detected.
First, the internal taper hole of measuring roller 20, in the end of roller 20, is also the diameter D of the bottom surface of internal taper hole, and when having design tapering T according to relational expression two calculating, the internal taper hole of this roller 20 and the end of roller 20 are at a distance of a theoretical diameter d that both set a distance b place is corresponding
t.Relational expression two is: d=D-bT.
In order to the convenience calculated, described in can enabling, both set a distance b is designed tapering T and eliminates, and thus makes theoretical diameter d
tensure as integer as far as possible.
Correspondingly, the block 10 in internal taper detection device is fixedly connected on the end of roller 20, and location-plate 12 is fixedly connected with block 10, make location-plate 12 extend into the internal taper hole of roller 20.
Afterwards, the measurement column 13 with length L is placed in correspondence one through hole 121 of location-plate 12, the axis of this through hole 121 and the intersect vertical axis of roller 20.This through hole 121 is b with end both set a distances apart of roller 20, and one end of measurement column 13 connects with roller 20 inwall 202, also namely with a bit connecting on a bus of internal taper hole.
Then, one end 151 of internal diameter gauge rod 15 is connected with the other end 132 of measurement column 13, and measure the distance M between this other end 132 of measurement column 13 and another bus of relative with this bus on roller 20 inwall 202.Be appreciated that the axis of this other end 132 of this two opposing busbars, measurement column 13 and roller 20 is in same plane.After recording M value, above-mentioned relation formula three is utilized to calculate the internal taper hole of this roller 20 with the end of roller 20 at a distance of the actual diameter d that both set a distance b place is corresponding
r.Relational expression three is d
r=M/cos
+ L, wherein θ is the cone angle that design tapering T is corresponding.
At the actual diameter d that both set a distances b place of the end obtaining distance roller 20 is corresponding
rwith theoretical diameter d
tafter, can judge whether both are equal, if do not waited, show that the actual tapering processed of the internal taper hole of this roller 20 is not inconsistent with design tapering, if equal, show that the actual tapering processed of the internal taper hole of this roller 20 conforms to design tapering.Be appreciated that above-mentioned theory value and actual value can arrange rational deviate because measure and process the relation that all there is error, if both are within the scope of this deviate, then can represent that the tapering of actual processing conforms to design tapering.
In the application of reality, can according to the roller 20 of different designs tapering, and through hole on location-plate 12 121 and the distance of the end of roller 20, calculate the theoretical diameter of the internal taper hole of the position of corresponding each through hole 121, thus provide corresponding comparing data bank for reality detects.Thus, when these roller internal taper detection device of practical application, after recording the actual diameter of the internal taper hole at through hole 121 place, only need and the comparing in corresponding data bank.
In order to avoid the impact of measuring error as far as possible, as shown in Figure 3, described actual diameter d
rcan be the mean value of end gained behind multiple positions circumferentially at both set a distance b places of internal taper hole by measuring this roller 20 and roller 20.This plurality of positions can be arranged be evenly distributed on circumferentially.Concrete measurement how many times can decide according to factors such as the internal diameters of roller 20, such as, when internal diameter is more than 1200mm, evenly can measure 6 location points circumferentially, when internal diameter is more than 1800mm, evenly can measure 8 location points circumferentially.
When internal taper detection device has locating sleeve 14, then when one end 151 of internal diameter gauge rod 15 is connected with the other end 132 of measurement column 13, use this locating sleeve 14, the pilot hole that the two ends of locating sleeve 14 are offered is described one end 151 of accommodating location internal diameter gauge rod 15 and the described other end 132 of measurement column 13 respectively.
Further, interference can not be produced when being placed in roller 20 internal taper hole of different tapering to make this location-plate 12, block 10 can be made to change with the relative link position of location-plate 12, such as on the linking arm 102 of block 10 or on location-plate 12, multiple connecting hole is set along the diverse location of the radial direction of roller 20, adopt web member to connect relative link position that the connecting hole of diverse location changes location-plate and linking arm.
Above-mentioned explanation be internal taper detection device to the method there is the tapering of the vertex of a cone towards the internal taper hole of roller 20 detecting.In fact, internal taper detection device of the present invention also can the vertex of a cone of internal taper hole of roller 20 away from roller 20 time, the detection of the tapering of this internal taper hole.As shown in Figure 5, similar in this detection method and above-described embodiment, but because the diameter of internal taper hole is by the inside flaring in the end of roller 20, therefore at the end of the internal taper hole with roller 20 that calculate this roller 20 theoretical diameter d that both set a distance b place is corresponding apart
ttime, following relational expression should be adopted: d=D+bT.Wherein, identical all with above-described embodiment of the implication of D, b, T representative.
In addition, the measurement column 13 that multiple length differs can also be provided, be contained in different through holes 121 respectively, and design the difference in length of these measurement columns 13, when the actual tapering of roller 20 internal taper hole is conformed to design tapering, distance between the other end 132 of each measurement column 13 with the respective bus bars (axis 22 of this bus, this other end 132 and roller 20 is at same plane) on roller 20 inwall 202 is all equal, is also that the reading M that each internal diameter gauge rod 15 records in the position of corresponding measurement column 13 is all equal.Thus, after measuring the distance M between this other end 132 with corresponding bus of the measurement column 13 in the different through holes 121 of location-plate 12, directly whether equal by each measured value of comparison M, just can know whether the actual tapering of internal taper hole has problems.
In the application of reality, this internal taper detection device according to concrete roller 20 and its different design tapering, can provide the measurement column 13 accordingly with difference in length.When needing the tapering of the internal taper hole detecting a certain concrete roller 20, then use corresponding measurement column 13.
Internal taper detection device structure provided by the invention is simple, with low cost, easy to use, the internal taper after processing can be detected whether conform to design tapering, thus guarantee that follow-up workpiece assembling completes smoothly, promote relevant device performance in use, lower the device damage caused because taper-face contact ratio is not enough, better ensure the efficiency under pipelining thus.
Claims (18)
1. an internal taper detection device, for detecting the actual tapering of internal taper hole of the workpiece after processing according to design tapering, it is characterized in that, this pick-up unit comprises block, location-plate, internal diameter gauge rod and at least one measurement column, this block is for being fixedly connected on workpiece, and be fixedly connected with location-plate, location-plate extends into internal taper hole, and location-plate offers at least two through holes, the bottom surface of each through hole and internal taper hole is at a distance of corresponding one both set a distance, the axis of each through hole and the intersect vertical axis of internal taper hole, measurement column is used for being contained in a corresponding through hole, and one end of measurement column is for connecting to more corresponding on the bus of internal taper hole, the other end is used for connecting with one end of internal diameter gauge rod, internal diameter gauge rod is for measuring the distance between this end of connection internal diameter gauge rod of measurement column and another bus relative with this bus on internal taper hole,
This block comprises substrate and linking arm, and substrate is used for being connected with workpiece, and linking arm is connected with location-plate;
Diverse location place on linking arm or along the radial direction of internal taper hole bottom surface on location-plate arranges multiple connecting hole, for converting the link position of location-plate and linking arm;
Being filled with magnet in described connecting hole, when adjusting the relative position of location-plate and block, the magnet adsorption of diverse location can being made together.
2. internal taper detection device as claimed in claim 1, it is characterized in that: also comprise a locating sleeve, pilot hole is offered at the two ends of locating sleeve, is respectively used to one end connected of accommodating internal diameter gauge rod and measurement column.
3. internal taper detection device as claimed in claim 1, it is characterized in that: each measurement column has length difference, and this length difference is when making the actual tapering of internal taper hole after processing conform to given design tapering, the distance between this end of connection internal diameter gauge rod of corresponding measurement column and another bus relative with this bus on internal taper hole is all equal.
4. internal taper detection device as claimed in claim 1, is characterized in that: bottom surface both set a distances apart of described through hole and internal taper hole can be eliminated by given design tapering.
5. internal taper detection device as claimed in claim 1, is characterized in that: the axis of each through hole on location-plate drops on the same bus of internal taper hole.
6. one kind utilizes the method as the actual tapering of the internal taper detection device in claim 1-5 item as described in any one to the internal taper hole of workpiece detects, comprise the steps: according to design tapering T and the basal diameter D of internal taper hole, calculate internal taper hole with the theoretical diameter d of internal taper hole bottom surface at a distance of a both set a distance b place
t;
Block is fixedly connected on workpiece, and location-plate is fixedly connected with block, make location-plate extend into internal taper hole, location-plate is provided with at least one through hole, the axis of through hole and the intersect vertical axis of internal taper hole, and wherein the bottom surface of a through hole and internal taper hole at a distance of both set a distance b;
The measurement column with length L is placed in the bottom surface of internal taper hole in the through hole of both set a distance b, and one end of measurement column connects to more corresponding on the bus of internal taper hole; One end of internal diameter gauge rod is connected with the other end of measurement column, and the distance M measured between this end of connection internal diameter gauge rod of measurement column and another bus relative with this bus of internal taper hole, and following relational expression is utilized to calculate this internal taper hole and the internal taper hole bottom surface actual diameter at a distance of both set a distance b places
wherein θ is the cone angle that design tapering T is corresponding; Judge this actual diameter d
rwith theoretical diameter d
twhether equal, if do not waited, the actual tapering of this internal taper hole is not inconsistent with design tapering.
7. method as claimed in claim 6, is characterized in that: described actual diameter d
rbe measure in this internal taper hole with the mean value of internal taper hole bottom surface at a distance of both circumferentially multiple positions gained at set a distance b place.
8. method as claimed in claim 6, it is characterized in that: when being connected with measurement column one end of internal diameter gauge rod, also use a locating sleeve, pilot hole is offered at the two ends of locating sleeve, is respectively used to one end connected of accommodating location internal diameter gauge rod and measurement column.
9. method as claimed in claim 6, it is characterized in that: use multiple measurement column with length difference, be placed in corresponding through hole respectively, and this length difference is when making the actual tapering of internal taper hole conform to design tapering, connect in the correspondence of each measurement column the distance M between another bus relative with this bus in internal taper hole that this end of internal diameter gauge rod records all equal.
10. method as claimed in claim 6, it is characterized in that: this block comprises substrate and linking arm, substrate is connected with workpiece, linking arm is connected with location-plate, linking arm arranges multiple connecting hole along the diverse location of the radial direction of the bottom surface of internal taper hole, for when detecting different design tapering, change the relative link position of location-plate and linking arm.
11. methods as claimed in claim 6, is characterized in that: bottom surface both set a distances b apart of described through hole and internal taper hole can be eliminated by described design tapering T.
12. methods as claimed in claim 6, is characterized in that: calculate internal taper hole with the theoretical diameter d of internal taper hole bottom surface at a distance of both set a distance b places
tadopt following relational expression: d=D ± bT, wherein when internal taper hole inside contracts towards workpiece, adopt relational expression: d=D-bT, when internal taper hole expands in workpiece, adopt relational expression: d=D+bT.
13. 1 kinds of internal taper detection methods, the actual tapering for the internal taper hole to workpiece detects, and comprises the steps: according to relational expression:
theory of computation value M
t, wherein adopt relational expression when internal taper hole inside contracts towards workpiece:
relational expression is adopted when internal taper hole expands in workpiece:
Wherein D represents the basal diameter of internal taper hole; B represents the distance a bit arriving the bottom surface of internal taper hole on a bus of internal taper hole; T represents the design tapering of internal taper hole; L represent on this bus a bit and by this internal taper hole of any radial direction on another point between distance; θ represents the cone angle that internal taper hole is corresponding in time designing tapering T; M represents that another point above-mentioned arrives the distance between another bus relative with this bus of internal taper hole;
The internal taper detection device comprising block, location-plate, internal diameter gauge rod and at least one measurement column is provided, block is fixedly connected on workpiece, and location-plate is fixedly connected with block, location-plate is made to extend into internal taper hole, wherein location-plate is provided with at least one through hole, the axis of through hole and the intersect vertical axis of internal taper hole, one of them through hole is b to the bottom surface distance of internal taper hole;
In the through hole that the bottom surface distance measurement column with length L being placed in the above-mentioned of location-plate and internal taper hole is b, and one end of measurement column connects to more corresponding on this bus of internal taper hole;
Connected with the other end of measurement column one end of internal diameter gauge rod, and measure the distance between this end of connection internal diameter gauge rod of measurement column and another bus relative with this bus of internal taper hole, the distance recorded is actual value M
r;
Judge actual value M
rwith theoretical value M
twhether equal, if do not waited, show that the actual tapering of this internal taper hole is not inconsistent with design tapering.
14. methods as claimed in claim 13, is characterized in that: described actual value M
rbe measure in this internal taper hole with the mean value of internal taper hole bottom surface at a distance of both circumferentially multiple positions gained at set a distance b place.
15. methods as claimed in claim 13, it is characterized in that: when being connected with measurement column one end of internal diameter gauge rod, also use a locating sleeve, pilot hole is offered at the two ends of locating sleeve, is respectively used to one end connected of accommodating location internal diameter gauge rod and measurement column.
16. methods as claimed in claim 13, it is characterized in that: use multiple measurement column with length difference, be placed in corresponding through hole respectively, and this length difference is when making the actual tapering of internal taper hole conform to design tapering, connect in the correspondence of each measurement column the distance M between another bus relative with this bus in internal taper hole that this end of internal diameter gauge rod records all equal.
17. methods as claimed in claim 13, it is characterized in that: this block comprises substrate and linking arm, substrate is connected with workpiece, linking arm is connected with location-plate, linking arm arranges multiple connecting hole along the diverse location of the radial direction of the bottom surface of internal taper hole, for when detecting different design tapering, change the relative link position of location-plate and linking arm.
18. methods as claimed in claim 13, is characterized in that: bottom surface both set a distances b apart of described through hole and internal taper hole can be eliminated by described design tapering T.
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| CN201310147276.8A CN103234434B (en) | 2013-04-25 | 2013-04-25 | Internal taper detection device and method |
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| CN103557761B (en) * | 2013-10-28 | 2016-03-02 | 湖北三江航天江北机械工程有限公司 | Rocket chamber shell regurgitates measuring method and the special purpose device in hole |
| CN104482839A (en) * | 2014-12-22 | 2015-04-01 | 南车株洲电机有限公司 | Method and tool for measuring turned inner cone hole |
| CN104833293B (en) * | 2015-04-07 | 2017-07-04 | 上海信耀电子有限公司 | For the technological equipment of washer nozzle angle detection |
| CN105157536B (en) * | 2015-06-02 | 2018-09-14 | 宁夏共享精密加工有限公司 | A kind of detecting tool of major diameter outer conical surface |
| CN106705811B (en) * | 2015-07-17 | 2023-08-15 | 湖北大帆汽车零部件有限公司 | Folding measuring device |
| CN106705813B (en) * | 2015-07-17 | 2023-08-15 | 湖北大帆汽车零部件有限公司 | Folding diaphragm spring measuring device |
| CN107044841A (en) * | 2017-04-26 | 2017-08-15 | 中原内配集团股份有限公司 | Cylinder cover inner hole diameter measuring device and cylinder cover inner hole system for detecting diameter |
| CN108161308B (en) * | 2018-01-10 | 2024-03-12 | 深圳市金洲精工科技股份有限公司 | Alignment device and alignment method for preventing welding material from being reversed |
| CN109959351B (en) * | 2018-12-25 | 2020-12-29 | 中钢集团邢台机械轧辊有限公司 | Method for detecting conicity of inner conical surface of large-sized roller sleeve |
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| GB671865A (en) * | 1950-05-19 | 1952-05-14 | Alan Douglas Mcphie | Improvements in taper measuring devices |
| CN100507436C (en) * | 2007-07-05 | 2009-07-01 | 重庆齿轮箱有限责任公司 | Meter for conic hole |
| CN201229160Y (en) * | 2008-07-15 | 2009-04-29 | 宝山钢铁股份有限公司 | Conicity measurement mechanism for oil sleeve joint loop blank |
| CN102042794A (en) * | 2009-10-20 | 2011-05-04 | 刘建新 | Taper detection device |
| CN202002633U (en) * | 2010-10-26 | 2011-10-05 | 深圳信息职业技术学院 | Inner hole taper measuring equipment |
| CN202339182U (en) * | 2011-12-19 | 2012-07-18 | 浙江浦江齿轮有限公司 | Device for measuring internal taper |
| CN202562422U (en) * | 2012-04-13 | 2012-11-28 | 天津华建天恒传动有限责任公司 | Large workpiece inner-outer taper measuring device |
| CN102944166A (en) * | 2012-12-05 | 2013-02-27 | 柳州欧维姆机械股份有限公司 | External taper slope measuring steel ball inspection device and measuring method thereof |
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